1 Corinthians 15:12-14

But if it has been proclaimed that the Messiah has been raised from the dead, how is it that some of you are saying there is no such thing as a resurrection of the dead?

If there is no resurrection of the dead, then the Messiah has not been raised;

and if the Messiah has not been raised, then what we have proclaimed is in vain; also your trust is in vain;