1 Corinthians 15:3; 1 Corinthians 15:17; 1 Corinthians 15:56

3 For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures,
17 and if Christ has not been raised, your faith is worthless; you are still in your sins.
56 The sting of death is sin, and the power of sin is the law;