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Strong's Concordance
Greek Word Study

Strong's G2901 κραταιόω (krataioo)

Krataioo means “be strengthened” — full meaning, definition, and every linked Bible usage across the indexed canon.

Same number, other testament: Strong's H2901 — tavah (“spin”) in the Hebrew Bible.

Strong's Number G2901
Language Greek
Linked Usages 62
Books 19

Strong's G2901 Quick Answer

Strong's G2901 κραταιόω (krataioo) is a Greek Strong's word-study entry. krataioo (krat-ai-oh'-o) v. 1. to empower 2. (passively) increase in vigor It has 62 linked Bible usages across 19 books. Visible English usage signals include waxed, strong, and strengthened. Indexed coverage on this page includes New Testament, Septuagint / Greek Old Testament, and Deuterocanonical / Apocrypha.

Meaning
krataioo (krat-ai-oh'-o) v. 1. to empower 2. (passively) increase in vigor
Usage
62 linked usages
Books
19 indexed books
Corpus
New Testament, Septuagint / Greek Old Testament, and Deuterocanonical / Apocrypha
Usage Words
waxed, strong, and strengthened

Meaning and Definition

krataioo (krat-ai-oh'-o) v. 1. to empower 2. (passively) increase in vigor [from G2900] KJV: be strengthened, be (wax) strong Root(s): G2900

Original Word
κραταιόω
Transliteration
krataioo
Derivation
Root: κραταιός R1: 2900
Morphology
verb

Across Lexicons

How independent scholarly lexicons define Strong's G2901. Each definition is shown with its source so you can compare and cite the original reference works.

Extended Strong's Greek Lexicon (Abbott-Smith based)

to strengthen

Usage: κραταιόω, -ῶ (late form of κρατύνω; κράτος) [in LXX chiefly for חָזַק ;] to strengthen; pass., to wax strong: Luk.2:40, 1Co.16:13; πνεύματι, Luk.1:80; δυνάμει κ. διὰ τ. πνεύματος, Eph.3:16.† (AS)

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How Strong's G2901 Is Translated

The English word each shown verse actually uses to render krataioo, taken from the interlinear word alignment (the same word underlined in the excerpts below). Where a rendering is used more than once, the count is shown.

waxed Luke 1:80 strengthened Ephesians 3:16 strong 1 Corinthians 16:13

How Strong's G2901 Usage Compares

Indexed coverage includes Septuagint / Greek Old Testament, New Testament, and Deuterocanonical / Apocrypha. Each section below keeps corpus counts and sample passages visible so readers can compare the word across contexts instead of reading one flat concordance list.

  • The largest indexed corpus on this page is Septuagint / Greek Old Testament with 55 linked usages.
  • This page lets readers compare New Testament usage with Septuagint / Greek Old Testament usage, which is a key THF advantage over narrower Strong's pages.
  • Deuterocanonical / Apocrypha rows are counted separately so readers can decide how those texts relate to the main word study.

In the Septuagint (LXX)

Strong's G2901 (κραταιόω) appears 61 times in the Greek Septuagint — the Old Testament the New Testament authors quoted.

Sample Septuagint occurrences:

Read the full Greek Septuagint interlinear with Strong's →

Strong's G2901 by Corpus

Indexed usage grouped by testament and extended corpus so readers can compare this word across the Bible, Septuagint, deuterocanonical books, and 1 Enoch where present.

Strong's G2901 in the New Testament

4 indexed usages in New Testament.

Luke 1:80 KJV

And the child grew, and waxed strong in spirit, and was in the deserts till the day of his shewing unto Israel.

Luke 2:40 KJV

And the child grew, and waxed strong in spirit, filled with wisdom: and the grace of God was upon him.

Strong's G2901 in the Septuagint / Greek Old Testament

55 indexed usages in Septuagint / Greek Old Testament.

Judges 3:10 Septuagint / Brenton

And the Spirit of the Lord came upon him, and he judged Israel; and he went out to war against Cushan-rishathaim: and the Lord delivered into his hand Cushan-rishathaim king of Syria of the rivers, and his hand prevailed against Cushan-rishathaim.

Ruth 1:18 Septuagint / Brenton

And Naomi seeing that she was determined to go with her, ceased to speak to her anymore.

1 Kingdoms 4:9 Septuagint / Brenton

Strengthen yourselves and behave yourselves like men, O ye Philistines, that ye may not serve the Hebrews as they have served us, but be ye men and fight with them.

Strong's G2901 in the deuterocanonical books / Apocrypha

3 indexed usages in Deuterocanonical / Apocrypha.

Judith 1:13 Septuagint / Brenton

Then he marched in battle array with his power against King Arphaxad in the seventeenth year, and he prevailed in his battle: for he overthrew all the power of Arphaxad, and all his horsemen, and all his chariots,

Judith 13:7 Septuagint / Brenton

and approached to his bed, and took hold of the hair of his head, and said, Strengthen me, O Lord God of Israel, this day.

1 Maccabees 1:62 Septuagint / Brenton

Howbeit many in Israel were fully resolved and confirmed in themselves not to eat any unclean thing.

Usage Excerpts

First 62 linked usage excerpts for Strong's G2901.

Judges 3:10 Septuagint / Greek Old Testament, Septuagint / Brenton
And the Spirit of the Lord came upon him, and he judged Israel; and he went out to war against Cushan-rishathaim: and the Lord delivered into his hand Cushan-rishathaim king of Syria of the rivers, and his hand prevailed against Cushan-rishathaim.
Ruth 1:18 Septuagint / Greek Old Testament, Septuagint / Brenton
And Naomi seeing that she was determined to go with her, ceased to speak to her anymore.
1 Kingdoms 4:9 Septuagint / Greek Old Testament, Septuagint / Brenton
Strengthen yourselves and behave yourselves like men, O ye Philistines, that ye may not serve the Hebrews as they have served us, but be ye men and fight with them.
1 Kingdoms 23:16 Septuagint / Greek Old Testament, Septuagint / Brenton
And Jonathan son of Saul rose, and went to David to Caene, and strengthened his hands in the Lord.
1 Kingdoms 30:6 Septuagint / Greek Old Testament, Septuagint / Brenton
And David was greatly distressed, because the people spoke of stoning him, because the soul of all the people was grieved, each for his sons and his daughters: but David strengthened himself in the Lord his God.
2 Kingdoms 1:23 Septuagint / Greek Old Testament, Septuagint / Brenton
Saul and Jonathan, the beloved and the beautiful, were not divided: Comely were they in their life, and in their death they were not divided: They were swifter than eagles, And they were stronger than lions.
2 Kingdoms 2:7 Septuagint / Greek Old Testament, Septuagint / Brenton
And now let your hands be made strong, and be valiant; for your master Saul is dead, and moreover the house of Judah have anointed me to be king over them.
2 Kingdoms 3:1 Septuagint / Greek Old Testament, Septuagint / Brenton
And there was war for a long time between the house of Saul and the house of David; and the house of David grew continually stronger; but the house of Saul grew continually weaker.
2 Kingdoms 10:11 Septuagint / Greek Old Testament, Septuagint / Brenton
And he said, If Syria be too strong for me, then shall ye help me: and if the children of Ammon be too strong for thee, then will we be ready to help thee.
2 Kingdoms 10:12 Septuagint / Greek Old Testament, Septuagint / Brenton
Be thou courageous, and let us be strong for our people, and for the sake of the cities of our God, and the Lord shall do that which is good in his eyes.
2 Kingdoms 11:23 Septuagint / Greek Old Testament, Septuagint / Brenton
And the messenger said to David, The men prevailed against us, and they came out against us into the field, and we came upon them even to the door of the gate.
2 Kingdoms 11:25 Septuagint / Greek Old Testament, Septuagint / Brenton
And David said to the messenger, Thus shalt thou say to Joab, Let not the matter be grievous in thine eyes, for the sword devours one way at one time and another way at another: strengthen thine array against the city, and destroy it, and strengthen him.
2 Kingdoms 13:14 Septuagint / Greek Old Testament, Septuagint / Brenton
But Amnon would not hearken to her voice; and he prevailed against her, and humbled her, and lay with her.
2 Kingdoms 22:18 Septuagint / Greek Old Testament, Septuagint / Brenton
He delivered me from my strong enemies, From them that hated me, for they were stronger than I.
2 Kingdoms 23:3 Septuagint / Greek Old Testament, Septuagint / Brenton
The God of Israel says, A watchman out of Israel spoke to me a parable: I said among men, How will ye strengthen the fear of the anointed?
3 Kingdoms 21:22 Septuagint / Greek Old Testament, Septuagint / Brenton
And the prophet came to the king of Israel, and said, Strengthen thyself, and observe, and see what thou shalt do; for at the return of the year the son of Hadad king of Syria comes up against thee.
3 Kingdoms 21:23 Septuagint / Greek Old Testament, Septuagint / Brenton
And the servants of the king of Syria, even they said, The God of Israel is a God of mountains, and not a God of valleys; therefore has he prevailed against us: but if we should fight against them in the plain, verily we shall prevail against them.
3 Kingdoms 21:25 Septuagint / Greek Old Testament, Septuagint / Brenton
And we will give thee another army according to the army that was destroyed, and cavalry according to the cavalry, and chariots according to the chariots, and we will fight against them in the plain, and we shall prevail against them. And he hearkened to their voice, and did so.
4 Kingdoms 3:26 Septuagint / Greek Old Testament, Septuagint / Brenton
And the king of Moab saw that the battle prevailed against him; and he took with him seven hundred men that drew sword, to cut through to the king of Edom: and they could not.
4 Kingdoms 12:7 Septuagint / Greek Old Testament, Septuagint / Brenton
And it came to pass in the twenty-third year of King Jehoash the priests had not repaired the breaches of the house.
4 Kingdoms 12:8 Septuagint / Greek Old Testament, Septuagint / Brenton
And King Jehoash called Jehoiada the priest, and the other priests, and said to them, Why have ye not repaired the breaches of the house? now then receive no more money from your sales, for ye shall give it to repair the breaches of the house.
4 Kingdoms 12:13 Septuagint / Greek Old Testament, Septuagint / Brenton
And to the masons, and to the hewers of stone, to purchase timber and hewn stone to repair the breaches of the house of the Lord, for all that was spent on the house of the Lord to repair it.
4 Kingdoms 12:15 Septuagint / Greek Old Testament, Septuagint / Brenton
for they were to give it to the workmen, and they repaired therewith the house of the Lord.
4 Kingdoms 22:6 Septuagint / Greek Old Testament, Septuagint / Brenton
even to the carpenters, and builders, and masons, and also to purchase timber and hewn stones, to repair the breaches of the house.
1 Chronicles 21:4 Septuagint / Greek Old Testament, Septuagint / Brenton
Nevertheless the king’s word prevailed against Joab; and Joab went out and passed through all Israel, and came to Jerusalem.
2 Chronicles 21:4 Septuagint / Greek Old Testament, Septuagint / Brenton
And Jehoram entered upon his kingdom, and strengthened himself, and slew all his brothers with the sword, and some of the princes of Israel.
2 Chronicles 23:1 Septuagint / Greek Old Testament, Septuagint / Brenton
And in the eighth year Jehoiada strengthened himself, and took the captains of hundreds, Azariah the son of Jeroham, and Ishmael the son of Jehohanan, and Azariah the son of Obed, and Maaseiah the son of Adaiah, and Elishaphat the son of Zichri, with him into the house of the Lord.
2 Chronicles 34:8 Septuagint / Greek Old Testament, Septuagint / Brenton
And in the eighteenth year of his reign, after having cleansed the land, and the house, he sent Shaphan the son of Azaliah, and Maaseiah prefect of the city, and Joah son of Joahaz his recorder, to repair the house of the Lord his God.
2 Chronicles 35:22 Septuagint / Greek Old Testament, Septuagint / Brenton
Nevertheless Josiah would not turn his face from him, but disguised himself, that he might fight with him, and hearkened not unto the words of Necho from the mouth of God, and came to fight in the valley of Megiddo.
Ezra 6:22 Septuagint / Greek Old Testament, Septuagint / Brenton
And kept the feast of unleavened bread seven days with joy: for the LORD had made them joyful, and turned the heart of the king of Assyria unto them, to strengthen their hands in the work of the house of God, the God of Israel.
Ezra 7:28 Septuagint / Greek Old Testament, Septuagint / Brenton
And hath extended mercy unto me before the king, and his counsellors, and before all the king's mighty princes. And I was strengthened as the hand of the LORD my God was upon me, and I gathered together out of Israel chief men to go up with me.
Nehemiah 2:18 Septuagint / Greek Old Testament, Septuagint / Brenton
Then I told them of the hand of my God which was good upon me; as also the king's words that he had spoken unto me. And they said, Let us rise up and build. So they strengthened their hands for this good work.
Nehemiah 6:9 Septuagint / Greek Old Testament, Septuagint / Brenton
For they all made us afraid, saying, Their hands shall be weakened from the work, that it be not done. Now therefore, O God, strengthen my hands.
Job 36:19 Septuagint / Greek Old Testament, Septuagint / Brenton
Let not thy mind willingly turn thee aside From the petition of the feeble that are in distress.
Job 36:22 Septuagint / Greek Old Testament, Septuagint / Brenton
Behold, the Mighty One shall prevail by his strength: For who is powerful as he is?
Psalms 9:20 Septuagint / Greek Old Testament, Septuagint / Brenton
Arise, O Lord, let not man prevail: Let the heathen be judged before thee.
Psalms 26:14 Septuagint / Greek Old Testament, Septuagint / Brenton
Wait on the Lord: Be of good courage, and let thy heart be strengthened: Yea, wait on the Lord.
Psalms 30:25 Septuagint / Greek Old Testament, Septuagint / Brenton
Be of good courage, and let your heart be strengthened, All ye that hope in the Lord.
Psalms 37:20 Septuagint / Greek Old Testament, Septuagint / Brenton
But mine enemies live, and are mightier than I: And they that hate me unjustly are multiplied.
Psalms 63:6 Septuagint / Greek Old Testament, Septuagint / Brenton
They have set up for themselves an evil matter, They have given counsel to hide snares; They have said, Who shall see them?
Psalms 68:5 Septuagint / Greek Old Testament, Septuagint / Brenton
They that hate me without a cause are more than the hairs of my head: My enemies that persecute me unrighteously are strengthened: Then I restored that which I took not away.
Psalms 73:13 Septuagint / Greek Old Testament, Septuagint / Brenton
Thou didst establish the sea, in thy might, Thou didst break to pieces the heads of the dragons in the water.
Psalms 79:16 Septuagint / Greek Old Testament, Septuagint / Brenton
And restore that which thy right hand has planted: And look on the son of man whom thou didst strengthen for thyself.
Psalms 79:18 Septuagint / Greek Old Testament, Septuagint / Brenton
Let thy hand be upon the man of thy right hand, And upon the son of man whom thou didst strengthen for thyself.
Psalms 88:14 Septuagint / Greek Old Testament, Septuagint / Brenton
Thine is the mighty arm: Let thy hand be strengthened, let thy right hand be exalted.
Psalms 102:11 Septuagint / Greek Old Testament, Septuagint / Brenton
For as the heaven is high above the earth, The Lord has so increased his mercy toward them that fear him.
Psalms 104:4 Septuagint / Greek Old Testament, Septuagint / Brenton
Seek ye the Lord, and be strengthened; Seek his face continually.
Psalms 104:24 Septuagint / Greek Old Testament, Septuagint / Brenton
And he increased his people greatly, And made them stronger than their enemies.
Psalms 116:2 Septuagint / Greek Old Testament, Septuagint / Brenton
For his mercy has been abundant toward us: And the truth of the Lord endures forever.
Psalms 138:6 Septuagint / Greek Old Testament, Septuagint / Brenton
The knowledge of thee is too wonderful for me; It is very difficult, I cannot attain to it.
Psalms 138:17 Septuagint / Greek Old Testament, Septuagint / Brenton
But thy friends, O God, have been greatly honored by me; Their rule has been greatly strengthened.
Psalms 141:7 Septuagint / Greek Old Testament, Septuagint / Brenton
Attend to my supplication, For I am brought very low; Deliver me from them that persecute me; For they are stronger than I.
Lamentations 1:16 Septuagint / Greek Old Testament, Septuagint / Brenton
Mine eye has poured out water, Because he that should comfort me, That should restore my soul, Has been removed far from me: My sons have been destroyed, Because the enemy has prevailed.
Daniel 4:36 Septuagint / Greek Old Testament, Septuagint / Brenton
At the same time my reason returned to me, and I came to the honor of my kingdom; and my natural form returned to me, and my princes, and my nobles, sought me, and I was established in my kingdom, and more abundant majesty was added to me.
Daniel 5:20 Septuagint / Greek Old Testament, Septuagint / Brenton
But when his heart was lifted up, and his spirit was emboldened to act proudly, he was deposed from his royal throne, and his honor was taken from him.
Luke 1:80 New Testament, KJV
And the child grew, and waxed strong in spirit, and was in the deserts till the day of his shewing unto Israel.
Luke 2:40 New Testament, KJV
And the child grew, and waxed strong in spirit, filled with wisdom: and the grace of God was upon him.
1 Corinthians 16:13 New Testament, KJV
Watch ye, stand fast in the faith, quit you like men, be strong.
Ephesians 3:16 New Testament, KJV
That he would grant you, according to the riches of his glory, to be strengthened with might by his Spirit in the inner man;
Judith 1:13 Deuterocanonical / Apocrypha, Septuagint / Brenton
Then he marched in battle array with his power against King Arphaxad in the seventeenth year, and he prevailed in his battle: for he overthrew all the power of Arphaxad, and all his horsemen, and all his chariots,
Judith 13:7 Deuterocanonical / Apocrypha, Septuagint / Brenton
and approached to his bed, and took hold of the hair of his head, and said, Strengthen me, O Lord God of Israel, this day.
1 Maccabees 1:62 Deuterocanonical / Apocrypha, Septuagint / Brenton
Howbeit many in Israel were fully resolved and confirmed in themselves not to eat any unclean thing.

All Indexed Usage Links

Every indexed verse link for Strong's G2901, grouped by book.

Judges 1 usage, Septuagint / Greek Old Testament
Ruth 1 usage, Septuagint / Greek Old Testament
1 Kingdoms 3 usages, Septuagint / Greek Old Testament
2 Kingdoms 10 usages, Septuagint / Greek Old Testament
3 Kingdoms 3 usages, Septuagint / Greek Old Testament
4 Kingdoms 6 usages, Septuagint / Greek Old Testament
1 Chronicles 1 usage, Septuagint / Greek Old Testament
2 Chronicles 4 usages, Septuagint / Greek Old Testament
Ezra 2 usages, Septuagint / Greek Old Testament
Nehemiah 2 usages, Septuagint / Greek Old Testament
Job 2 usages, Septuagint / Greek Old Testament
Psalms 17 usages, Septuagint / Greek Old Testament
Lamentations 1 usage, Septuagint / Greek Old Testament
Daniel 2 usages, Septuagint / Greek Old Testament
Luke 2 usages, New Testament
1 Corinthians 1 usage, New Testament
Ephesians 1 usage, New Testament
Judith 2 usages, Deuterocanonical / Apocrypha
1 Maccabees 1 usage, Deuterocanonical / Apocrypha

Strong's G2901 FAQ

What does krataioo (κραταιόω) mean?

Krataioo (Strong's G2901) is a Greek word most simply glossed "be strengthened". krataioo (krat-ai-oh'-o) v. 1. to empower 2. (passively) increase in vigor

How many times is krataioo (κραταιόω) used in the Bible?

This page currently indexes 62 linked usages for Strong's G2901 across 19 books.

Where can I study krataioo (κραταιόω) in context?

Use the linked verse references on this page to study Strong's G2901 in context. The indexed coverage includes New Testament, Septuagint / Greek Old Testament, and Deuterocanonical / Apocrypha.

What English words translate krataioo (κραταιόω)?

The visible usage excerpts most often surface English words such as waxed, strong, and strengthened. These are scanning signals from the displayed verses, not replacements for the original-language definition.

Does Strong's G2901 appear in the Septuagint or deuterocanonical books?

Yes. The current local index includes 55 in Septuagint / Greek Old Testament and 3 in Deuterocanonical / Apocrypha for Strong's G2901, with linked reader references where each row is available.