2 Corinthians 1:1, 19

Paul, an apostle of Christ Jesus through the will of God, and Timothy our brother, unto the church of God which is at Corinth, with all the saints that are in the whole of Achaia

For the Son of God, Jesus Christ, who was preached among you by us, even by me and Silvanus and Timothy, was not yea and nay, but in him is yea.