1st Corinthians 15:12

9 for I am the least of the apostles, who am not worthy to be called an apostle, because I did persecute the assembly of God,

10 and by the grace of God I am what I am, and His grace that [is] towards me came not in vain, but more abundantly than they all did I labour, yet not I, but the grace of God that [is] with me;

11 whether, then, I or they, so we preach, and so ye did believe.

12 And if Christ is preached, that out of the dead he hath risen, how say certain among you, that there is no rising again of dead persons?

13 and if there be no rising again of dead persons, neither hath Christ risen;

14 and if Christ hath not risen, then void [is] our preaching, and void also your faith,

15 and we also are found false witnesses of God, because we did testify of God that He raised up the Christ, whom He did not raise if then dead persons do not rise;