1 Corinthians 15:18

“For if the dead rise not, then is not Christ raised: and if Christ be not raised, your faith is vain, because ye are yet in your sins, and they which have fallen asleep in Christ are perished.”” — editor's note: 1 Cor. xv. 12–18.

“Christ’s death, wherein lies the whole weight and fruit of the Christian name, is denied although the apostle asserts it so expressly as undoubtedly real, making it the very foundation of the gospel, of our salvation and of his own preaching.” — editor's note: 1 Cor. xv. 3, 4, 14, 17, 18.

Cited together in The Five Books Against Marcion III.7.