In other New Testament writings, increasingly
confessions of faith
1 Corinthians 15:3-7
For I handed on to you as of first importance what
I also received:
that Christ died for our sins in accordance with
that he was buried;
that he was raised on the third day in accordance
with the scriptures;
that he appeared to Kephas, then to the Twelve.
After that, he appeared to more than five hundred
brothers at once, ...
After that he appeared to James,
then to all the apostles.