Thirsting Souls Bible Teaching

(1Co 15:13) “But if there be no resurrection of the dead, then is Christ not risen: (14)  And if Christ be not risen, then is our preaching vain, and your faith is also vain.”  Why? If the grave held the Lord Jesus, it would indicate that He was under the curse, paying for His Own sin. The only way He could pay for ours is if He were sinless: “For the wages of sin is death” (Rom 6:23) and (Jas_2:10” “For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.”