1 Corinthians 15:14-18

and if Christ has not been raised, then our preaching is in vain, your faith also is in vain.

Moreover, we are even found to be false witnesses of God, because we testified against God that He raised Christ, whom He did not raise, if in fact the dead are not raised.

For if the dead are not raised, then not even Christ has been raised;

and if Christ has not been raised, your faith is worthless; you are still in your sins.

Then also those who have fallen asleep in Christ have perished.