But now is Christ risen from the dead, and become the firstfruits of them that slept.
All Commentaries on 1 Corinthians 15:20 Go To 1 Corinthians 15
Ambrosiaster
AD 400
Paul says this in order to get at the false prophets who claimed that Christ was never born and thus cannot have died. The resurrection from the dead proves that Christ was a man and therefore able to merit by his righteousness the resurrection of the dead. Commentary on Paul’s Epistles.