What Did the Early Christians Believe?
Start with the questions people ask most, then browse every belief topic A–Z — each one answered with primary-source quotations from the earliest Christian writers and the Bible passages they leaned on.
Start Here
The most-asked and most-debated questions about the early church.
Did the early Christians believe Jesus is God
The deity of Christ in the words of the first three centuries.
See the sources Most askedDid the early Christians believe in the real presence
What the earliest church actually said about the bread and the cup.
See the sources DebatedDid the early Christians believe in faith alone
Sola fide weighed against the writings of the first Christians.
See the sources DebatedDid the early Christians believe in sola Scriptura
Scripture, tradition, and authority in the ante-Nicene church.
See the sources DebatedDid the early Christians teach Calvinism
Grace, free will, and predestination before Augustine.
See the sources PopularInfant baptism
Did the earliest Christians baptize infants? Read the sources.
See the sources PopularBaptismal regeneration
Was baptism tied to the new birth in the early church?
See the sources PopularPraying to saints
When did Christians first ask the departed to pray for them?
See the sources PopularPurgatory and Prayers for the Dead
Prayers for the dead among the earliest Christians.
See the sources FoundationalThe Trinity
How the first Christians spoke of Father, Son, and Spirit.
See the sources PopularMary
What the early church believed about the mother of Jesus.
See the sources PopularThe Rapture and the Resurrection
End-times hope in the words of the earliest Christians.
See the sourcesAll Topics A–Z
766 belief topics, alphabetically.
A 46
B 23
C 62
D 24
E 29
F 13
G 14
H 28
I 19
J 16
K 3
L 15
M 39
N 12
O 10
P 53
Q 1
R 16
S 54
T 256
U 4
V 6
W 22
Z 1
What They Taught About Specific Passages
199 passage studies across 41 books — how the earliest Christians read individual texts.