Early Christian Views on Military Service
Early Christian writings give a mixed answer about military life. Some, like Tertullian and Lactantius, argue that Christians should not join warfare, while other texts allow soldiers if they live justly and avoid violence. Luke 3:14 gives soldiers a clear moral rule, and several writers use soldier language for Christian devotion and discipline.
117 early-church witnesses · 223 source quotations · compared with Scripture
What did early Christians believe about military Life and Christian Service?
Early Christian writings give a mixed picture of military life. Some writers, especially Tertullian and Lactantius, argue that Christians should not join warfare or should be kept from it, while other texts allow soldiers in the faith if they live justly and avoid abuse. Justin Martyr and the Apostolic Constitutions show a stricter moral line for soldiers, and Luke 3:14 tells soldiers to avoid violence and be content with their wages.
The Bible passages used here also lean on the wider idea of Christian service as loyalty to Christ first, with life ordered around peace, self-control, and good conduct. Overall, the evidence is broad but not one-sided: early Christians could speak of service in military terms, yet some of the strongest witnesses warn against actual warfare or military idolatry. Many more early Christian quotations, Bible passages, and source links are gathered below so you can study the evidence for yourself.
Key Takeaways
- Some early Christians treated warfare as wrong for believers.
- Other early texts allowed soldiers if they avoided injustice and idolatry.
- Luke 3:14 is the clearest Bible passage here for soldier conduct.
- Military language was also used as a picture for Christian service and discipline.
Questions Answered by the Sources
Did early Christians think believers should join the army?
The clearest direct witnesses are Tertullian, who questions whether warfare itself is proper for Christians and whether believers may turn to military service, and related later writers who use similar concerns about soldiering and Christian faithfulness. The Bible cards in this set also include soldierly service language, but the strongest early Christian evidence here is cautious to negative rather than supportive.
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Tertullian, De Corona Direct teaching
... issue of the military crown, I think we must first ask whether warfare itself is proper at all for Christians. What is the point of discussing what is merely secondary, when the thing it rests on is itself to be condemned? Do we believe it is lawful for a human oath to be added to a divine one, for a man to come under promise to another master after Christ, and to abjure father, mother, and all his nearest kinsfolk, whom even the law has commanded us to honor and love next to God Himself, and to whom the gospel also, holding them only of less account than Christ, has likewise given honor? Should it be considered lawful to make an occupation of the sword, when the Lord declares that he who uses the sword shall perish by the sword? And should the son of peace take part in battle, when it does not become him even to sue at law? And should he apply the chain, the prison, the torture, and the punishment, when he is not even the avenger of his own wrongs? Should he really keep watch-service for others more than for Christ, or should he do it on the Lord's Day, when he does not even do it for Christ Himself? And should he keep guard before the temples he has renounced? And should he t
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Tertullian, De Corona Direct teaching
To begin with the real ground of the military crown, I think we must first inquire whether warfare is proper at all for Christians.
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Lactantius, The Divine Institutes Direct teaching
...s which are considered lawful among men. Thus it will be lawful neither for a just man to engage in warfare, since his warfare is justice itself, nor to accuse anyone on a capital charge, because it makes no difference whether you put a man to death by word or by the sword, since it is the act of putting to death itself that is forbidden. Therefore, regarding this command of God, there ought to be no exception at all. It is always unlawful to put a man to death, whom God willed to be a sacred living creature.
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Lactantius, Of the Manner in Which the Persecutors Died Supporting witness
...ny copies of these words were made and given to the chief commanders, who were to teach them to the soldiers under their command. Because of this, everyone took fresh courage, confident that victory had been announced to them from heaven. Licinius decided to fight on the Kalends of May. Exactly eight years earlier, Daia had received the rank of Caesar. Licinius chose that day in the hope that Daia might be defeated on the anniversary of his reign, just as Maxentius had been defeated on his own anniversary. Daia, however, planned to fight earlier, on the day before those Kalends, so that he might win on the anniversary of his reign. Reports came that Daia was on the move. The soldiers of Licinius armed themselves and advanced. A barren, open plain called Campus Serenus lay between the two armies. They were now within sight of each other. The soldiers of Licinius placed their shields on the ground and took off their helmets. Then, following the example of their leaders, they stretched out their hands toward heaven. The emperor then spoke the prayer, and they all repeated it after him. The army, doomed to swift destruction, heard the low sound of the prayers of their enemies. Now w
Why did early Christians call the Christian life a warfare?
Many early sources use warfare language for the Christian life itself: believers are to stand firm, endure, serve God, and fight the good fight of faith. In these texts, the emphasis is usually spiritual discipline, fidelity, and perseverance rather than literal combat.
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Tertullian, On Idolatry Direct teaching
In that last section, a decision may seem likewise to have been given about military service, which stands between rank and power. But now this question is asked: may a believer turn himself to military service? And may soldiers be admitted to the faith, even the rank and file, or any lower grade, for whom there is no need to take part in sacrifices or capital punishments? There is no agreement between the divine sacrament and the human sacrament, between the standard of Christ and the standard of the devil, between the camp of light and the camp of darkness. One soul cannot be due to two masters, God and Caesar. And yet Moses carried a rod, and Aaron wore a buckle, and John the Baptist was clothed with a leather belt, and Joshua the son of Nun led a line of march, and the People made war, if it pleases you to make sport of the subject. But how will a Christian man wage war? No, how will he even serve in peace without a sword, which the Lord has taken away? Although soldiers had come to John and had received his instruction for their conduct, and although a centurion had likewise believed, still afterward the Lord, in disarming Peter, unbelted every soldier. No dress is lawful amon
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Tertullian, On Idolatry Direct teaching
But now inquiry is made about this point, whether a believer may turn himself unto military service, and whether the military may be admitted unto the faith, even the rank and file, or each inferior grade, to whom there is no necessity for taking part in sacrifices or capital punishments.
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Apostolic Constitutions, Apostolic Constitutions Supporting witness
83. Let a bishop, or presbyter, or deacon, who goes to the army, and desires to retain both the Roman government and the sacerdotal administration, be deprived.
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Lactantius, The Divine Institutes Supporting witness
he prohibits the inactive man from undertaking the business of the state, the sluggish from bodily exercise, the timid from military service.
Were soldiers allowed to become Christians?
Some sources show soldiers or military personnel being treated as possible converts or as people who should receive moral instruction, such as not extorting money and being content with wages. These cards show regulation and moral teaching more than a full endorsement of military life.
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Luke 3:14 Direct teaching
Soldiers also asked him, “And we, what shall we do?” And he said to them, “Do not extort money from anyone by threats or by false accusation, and be content with your wages.”
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Apostolic Constitutions, Apostolic Constitutions Supporting witness
If a soldier come, let him be taught to do no injustice, to accuse no man falsely, and to be content with his allotted wages: Luke 3:14 if he submit to those rules, let him be received;
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Justin Martyr, The First Apology Supporting witness
But if the soldiers enrolled by you, and who have taken the military oath, prefer their allegiance to their own life, and parents, and country, and all kindred, though you can offer them nothing incorruptible, it were verily ridiculous if we, who earnestly long for incorruption, should not endure all things, in order to obtain what we desire from Him who is able to grant it.
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Clement of Alexandria, The Instructor (Paedagogus) Supporting witness
But for a man bare feet are quite in keeping, except when he is on military service.
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1 Timothy 6:2 Supporting witness
And they that have believing masters, let them not despise them, because they are brethren; but rather do them service, because they are faithful and beloved, partakers of the benefit. These things teach and exhort.
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Ephesians 6:7 Supporting witness
with goodwill doing service, as to the Lord, and not to men,
Did early Christians think prayer helped more than fighting?
Several sources present Christians as serving through prayer and spiritual ministry rather than literal battle, especially when others are fighting. This includes apologetic language that Christian prayer helps kings and armies more than armed force.
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2 Timothy 2:4 Direct teaching
No man that warreth entangleth himself with the affairs of this life; that he may please him who hath chosen him to be a soldier.
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Philippians 1:27 Direct teaching
Only let your manner of life be worthy of the gospel of Christ, so that whether I come and see you or am absent, I may hear of you that you are standing firm in one spirit, with one mind striving side by side for the faith of the gospel,
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1 Timothy 6:12 Direct teaching
Fight the good fight of faith, lay hold on eternal life, whereunto thou art also called, and hast professed a good profession before many witnesses.
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Acts 20:24 Supporting witness
But I do not account my life of any value nor as precious to myself, if only I may finish my course and the ministry that I received from the Lord Jesus, to testify to the gospel of the grace of God.
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Ignatius, Epistles of Ignatius Supporting witness
“No man that warreth entangleth himself with the affairs of this life, that he may please him who hath chosen him to be a soldier;
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Ignatius, Epistle to Polycarp (Long Version) Supporting witness
A Christian has not power over himself, but must always be ready for the service of God.
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Ignatius of Antioch, Connection to 2 Timothy 2:4 Supporting witness
"No man that warreth entangleth himself with the affairs of this life, that he may please him who hath chosen him to be a soldier; and if a man also strive for masteries, yet is he not crowned except he strive lawfully."
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Ignatius of Antioch, Connection to 2 Timothy 2:3 Supporting witness
Be sober as an athlete of God: the prize set before you is immortality and eternal life.
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Clement of Alexandria, Exhortation to the Heathen Supporting witness
...those who obey, and judgment to those who disobey. When the loud trumpet is sounded, it gathers the soldiers and announces war. And shall not Christ, breathing a song of peace to the ends of the earth, gather His own soldiers, the soldiers of peace? Indeed, by His blood and by the word, He has gathered the bloodless army of peace and given them the kingdom of heaven. The trumpet of Christ is His Gospel. He has sounded it, and we have heard. Let us put on the armor of peace. Let us put on the breastplate of righteousness, take up the shield of faith, fasten the helmet of salvation on our heads, and sharpen the sword of the Spirit, which is the word of God, Ephesians 6:14-17. So the apostle commands in the spirit of peace. These are our weapons that cannot be pierced. Armed with these, let us stand against the evil one. Let us quench the fiery darts of the evil one with sword points dipped in water, since we have been baptized by the Word, returning grateful thanks for the benefits we have received, and honoring God through the Divine Word. For while you are still speaking, it is said, "Behold, I am beside you," Isaiah 58:9. Oh, this holy and blessed power, by which God has fellow
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Minucius Felix, Octavius Supporting witness
...d yet the general does not give what he does not have. He cannot preserve life, but he can make the warfare glorious. But God's soldier is neither forsaken in suffering, nor brought to an end by death. Thus the Christian may seem to be miserable; he cannot really be found to be so. You yourselves extol unfortunate men to the skies; Mucius Scaevola, for instance, who, when he had failed in his attempt against the king, would have perished among the enemies unless he had sacrificed his right hand. And how many of our people have borne that not their right hand only, but their whole body, should be burned—burned up without any cries of pain, especially when they had it in their power to be sent away! Do I compare men with Mucius or Aquilius, or with Regulus? Yet boys and young women among us treat with contempt crosses and tortures, wild beasts, and all the bugbears of punishments, with the inspired patience of suffering. And do you not perceive, O wretched men, that there is nobody who either is willing without reason to undergo punishment, or is able without God to bear tortures? Unless, perhaps, the fact has deceived you, that those who know not God abound in riches, flourish in
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Cyprian, Epistles Supporting witness
...gathered together in one place, and the Lord's army may be assembled for the battle of the heavenly warfare. For the repentance of those who mourned was rightly extended for a longer time, with help given only to the sick at their departure, as long as peace and calm continued. That allowed the tears of the mourners to be put off for a long time, and delayed aid in sickness for the dying. But now peace is needed, not for the sick, but for the strong. Communion must be given by us, not to the dying, but to the living, so that we may not leave unarmed and defenseless those whom we stir up and urge on to battle, but may strengthen them with the protection of Christ's body and blood. And since the Eucharist is appointed for this very purpose, that it may be a safeguard to those who receive it, it is necessary for us to arm with the protection of the Lord's abundance those whom we want to be safe against the adversary. For how do we teach or urge them to shed their blood in confessing His name if we deny the blood of Christ to those who are about to enter the warfare? Or how do we make them fit for the cup of martyrdom if we do not first allow them, in the Church, to drink the cup of
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Cyprian, Epistles Supporting witness
...given, the soldiers of God are proven, and heaven is opened to martyrs. For we have not enlisted in warfare in such a way that we should think only about peace and draw back from war or refuse it, when in this very warfare the Lord Himself walked first—the Teacher of humility, endurance, and suffering. So what He taught should be done, He Himself first did. And what He urges us to suffer, He Himself first suffered for us. Let it be before your eyes, beloved brothers, that He who alone received all judgment from the Father, and who will come to judge, has already declared the decision of His judgment and of His future acknowledgment. He foretold and testified that He will confess before His Father those who confess Him, and will deny those who deny Him. If we could escape death, we might rightly fear dying. But since it is necessary for a mortal man to die, we should embrace the opportunity that comes by the divine promise and condescension, and complete the end appointed through death with the reward of immortality. Nor should we fear being killed, since we are certain that when we are killed, we are crowned.
More related quotations from this section 10 shown
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Cyprian, Epistles Supporting witness
...pany are eager to carry on the struggle with the same common zeal of courage, as is fitting for the soldiers of Christ in the divine camp. Let no attractions deceive the uncorrupted firmness of your faith, no threats terrify you, and no sufferings or tortures overcome you, because greater is He who is in us than he who is in the world. Nor can earthly punishment do more to cast down than divine protection can do to lift up. This truth is proved by the glorious struggle of the brothers who, after becoming leaders for the rest by overcoming their tortures, gave an example of courage and faith. They fought in the contest until the contest itself gave way, being overcome. With what praises can I commend you, most courageous brothers? With what public proclamation can I exalt the strength of your hearts and the perseverance of your faith? You have endured the sharpest trial by torture, even to a glorious end. You have not yielded to sufferings, but rather the sufferings have yielded to you. The end of the torments, which the tortures themselves did not give, the crown has given. The trial by torture, growing more severe, continued for a long time toward this result: not to overthrow
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Hippolytus, Exegetical Fragments Supporting witness
... no king, because they were ruled by sin. But now, by believing God, they take part in the heavenly warfare.
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Hippolytus, Exegetical Fragments Supporting witness
but now, believing God, they engage in the heavenly warfare.
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Cyprian, Treatises Supporting witness
Our warfare is with avarice, with immodesty, with anger, with ambition;
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Cyprian, Treatises Supporting witness
In persecution, the warfare — in peace, the purity of conscience, is crowned.
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Cyprian, Treatises Supporting witness
...ve risen up, and stand upright.” And even more strongly, the Holy Spirit teaches and shows that the army of the devil is not to be feared, and that, if the enemy should declare war against us, our hope consists rather in that war itself; and that by that conflict the righteous attain the reward of the divine dwelling and eternal salvation. He lays this down in Psalm 26, and says: “Though an army should be arrayed against me, my heart shall not fear; though war should rise up against me, in that will I put my hope. One thing have I sought of the Lord, this will I require: that I may dwell in the house of the Lord all the days of my life.” Also in Exodus, Holy Scripture declares that we are rather multiplied and increased by afflictions, saying: “And the more they afflicted them, so much the more they became greater, and grew stronger.” Exodus 1:12 And in the Apocalypse, divine protection is promised to our sufferings. It says, “Fear nothing of these things which you shall suffer.” Revelation 2:10 Nor does anyone else promise us security and protection, but He who also speaks by Isaiah the prophet, saying: “Fear not; for I have redeemed you, and called you by your name: you are mi
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Origen, Against Celsus Supporting witness
... a praiseworthy custom, how much more is this: while others are engaged in battle, these too should serve as the priests and ministers of God, keeping their hands pure, and wrestling in prayers to God on behalf of those who are fighting in a righteous cause, and for the king who reigns righteously, so that whatever is opposed to those who act righteously may be destroyed. And as we by our prayers vanquish all demons who stir up war, and lead to the violation of oaths, and disturb the peace, in this way we are much more helpful to kings than those who go into the field to fight for them. And we do take our part in public affairs, when together with righteous prayers we join self-denying exercises and meditations, which teach us to despise pleasures and not be led away by them. And none fight better for the king than we do. We do not indeed fight under him, even if he requires it. But we fight on his behalf, forming a special army, an army of piety, by offering our prayers to God.
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Minucius Felix, Octavius Supporting witness
...eing prodigal. And that we feel and suffer the human mischiefs of the body is not punishment; it is warfare. For fortitude is strengthened by infirmities, and calamity is very often the discipline of virtue. In addition, the strength of both mind and body grows torpid without the exercise of labor. Therefore all your mighty men, whom you present as examples, have become illustrious through their afflictions. And so God is neither unable to help us, nor does He despise us, since He is both the ruler of all men and the lover of His own people. But in adversity He examines and searches out each one. He weighs every person's disposition in dangers, even at last in death. He investigates the will of man, certain that to Him nothing can perish. Therefore, as gold by the fires, so we are proved by critical moments.
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Lactantius, The Divine Institutes Supporting witness
... the faith is pleasing to God Himself and also gives authority to religion. For if a man in earthly warfare keeps faith with his king in some notable deed, then, if he lives, he becomes more beloved and accepted; and if he falls, he gains the highest glory, because he has suffered death for his leader. How much more, then, should faith be kept toward God, the Ruler of all, who is able to reward virtue not only to the living but also to the dead! Therefore the worship of God, since it belongs to heavenly warfare, requires the greatest devotion and faithfulness. For how will God love the worshiper if He Himself is not loved by him? Or how will He grant the petitioner whatever he asks, when he comes to offer prayer without sincerity or reverence? But when these men come to offer sacrifice, they present to their gods nothing from within, nothing of their own: no uprightness of mind, no reverence, no fear. So when their worthless sacrifices are finished, they leave their religion entirely in the temple, together with the temple, just as they found it. They neither bring anything of it with them nor take anything back. That is why religious observances of this kind can neither make me
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Cyprian, Treatises Supporting witness
I have been constrained to obey your so needful wish, so that as much as my limited powers, instructed by the aid of divine inspiration, are sufficient, some arms, as it were, and defences might be brought forth from the Lord's precepts for the brethren who are about to fight.
Common Questions
Did early Christians think soldiers could become Christians?
Some did, but with limits. Justin Martyr and the Apostolic Constitutions show soldiers being received if they lived rightly, while Tertullian and Lactantius argued more strongly against warfare itself.
Did early Christians teach that soldiers must act justly?
Yes. Luke 3:14 tells soldiers not to extort money, not to accuse falsely, and to be content with their wages, and the Apostolic Constitutions gives similar moral rules.
Did all early Christians reject military service?
No. The records are mixed. Some writers rejected it, while others used soldier language for Christian life or gave moral guidance to soldiers without clearly banning military service.
Source Index for Military Life and Christian Service
The guided sections above show the strongest quotations. This compact index highlights 160 ranked source links from 223 compiled sources for deeper study.
Source index 160 ranked links shown
Early Christian Writings 80 shown of 117
Primary-source quotations from early Christian writers and church documents.
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Ignatius of Antioch, Connection to 2 Timothy 2:3
Bible Passages 80 shown of 106
Related Bible passages saved for comparison with the early Christian quotations.
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