1 Corinthians 15:8

and that he appeared to Cephas, then to the twelve.

Then he appeared to over five hundred brothers at once, most of whom remain until now, but some have also fallen asleep.

Then he appeared to James, then to all the apostles,

For I am the least of the apostles, who is not worthy to be called an apostle, because I persecuted the assembly of God.

But by the grace of God I am what I am. His grace which was given to me was not futile, but I worked more than all of them; yet not I, but the grace of God which was with me.

Whether then it is I or they, so we preach, and so you believed.