1 Corinthians 15:20: “But now is Christ risen from the dead, and become the firstfruits of them that slept." Those that died in Christ.

1 Corinthians 15:21: “For since by man” [Adam] “came death, by man” [Christ] “came also the resurrection of the dead.”

1 Corinthians 15:22: "For as in Adam all die, even so in Christ shall all be made alive."