1 Corinthians 15:13

Therefore whether it were I or they, so we preach, and so ye believed.

Now if Christ be preached that he rose from the dead, how say some among you that there is no resurrection of the dead?

And if Christ be not risen, then is our preaching vain, and your faith is also vain.

Yea, and we are found false witnesses of God; because we have testified of God that he raised up Christ: whom he raised not up, if so be that the dead rise not.