Hebrews 10:2

"For then would they not have ceased to be offered? because that the worshippers once purged should have had no more conscience of sins."

Cross References (ranked by relevance)

I, even I, am he that blotteth out thy transgressions for mine own sake, and will not remember thy sins.

He will turn again, he will have compassion upon us; he will subdue our iniquities; and thou wilt cast all their sins into the depths of the sea.

As far as the east is from the west, so far hath he removed our transgressions from us.

I have blotted out, as a thick cloud, thy transgressions, and, as a cloud, thy sins: return unto me; for I have redeemed thee.

And their sins and iniquities will I remember no more.