1 Corinthians 15:9 in the World English Bible
For I am the least of the apostles, who is not worthy to be called an apostle, because I persecuted the assembly of God.
Context
8 And last of all he was seen of me also, as of one born out of due time.
9 For I am the least of the apostles, that am not meet to be called an apostle, because I persecuted the church of God.
10 But by the grace of God I am what I am: and his grace which was bestowed upon me was not in vain; but I laboured more abundantly than they all: yet not I, but the grace of God which was with me.