Have you ever made a mistake?
1 Corinthians 15:9–11 (CSB) —9For I am the least of the apostles, not worthy to be called an apostle, because I persecuted the church of God. 10But by the grace of God I am what I am, and his grace toward me was not in vain. On the contrary, I worked harder than any of them, yet not I, but the grace of God that was with me. 11Whether, then, it is I or they, so we proclaim and so you have believed.