1 Corinthians 15:9 in the King James Version
For I am the least of the apostles, that am not meet to be called an apostle, because I persecuted the church of God.
Context
8 and last of all, as to the child born at the wrong time, he appeared to me also.
9 For I am the least of the apostles, who is not worthy to be called an apostle, because I persecuted the assembly of God.
10 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.