1 Corinthians 15:3-4, 13-14
1 Corinthians 15:3-4 CSB
For I passed on to you as most important what I also received: that Christ died for our sins according to the Scriptures, that he was buried, that he was raised on the third day according to the Scriptures
1 Corinthians 15:13-14 CSB
If there is no resurrection of the dead, then not even Christ has been raised; and if Christ has not been raised, then our proclamation is in vain, and so is your faith.