Ye are still in your sins — That is, under the guilt of them. So that there needed something more than reformation, (which was plainly wrought,) in order to their being delivered from the guilt of sin even that atonement, the sufficiency of which God attested by raising our great Surety from the grave.
Related Commentaries of 1 Corinthians 15:17
1 Corinthians 15:17
17 And if Christ be not raised, your faith is vain; ye are yet in your sins.