1 Corinthians 15:9-11

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

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

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