1 Corinthians 15:11-14 New International Version (NIV)

11. Whether, then, it is I or they, this is what we preach, and this is what you believed.

12. But if it is preached that Christ has been raised from the dead, how can some of you say that there is no resurrection of the dead?

13. If there is no resurrection of the dead, then not even Christ has been raised.

14. And if Christ has not been raised, our preaching is useless and so is your faith.

1 Corinthians 15