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-reference
Hebrews 10:17 quotes God's promise to remember sins no more — the direct result of the cleansing that removes sin consciousness in Hebrews 10:2.
Hebrews 10:18 concludes the argument: where remission is, no more offering for sin, directly confirming the cessation implied in verse 2.
Hebrews 9:13 describes old covenant purification of the flesh — contrasting with the inner cleansing in Hebrews 10:2 that removes consciousness of sin.
Hebrews 9:14 states Christ's blood purifies our conscience — the direct fulfillment of the cleansing described in Hebrews 10:2.
Isaiah 43:25 has God blotting out and not remembering sins — the same result as the cleansing in Hebrews 10:2 that removes sin awareness.
Leviticus 16:30 describes the annual atonement cleansing — the very practice Hebrews 10:2 argues is insufficient because it leaves sin consciousness.
Psalm 103:12 says God removes transgressions as far as east from west — echoing the complete removal of sin consciousness in Hebrews 10:2.
Isaiah 44:22 pictures sins blotted out like a cloud — paralleling the complete removal of sin consciousness in Hebrews 10:2.
Micah 7:19 promises sins cast into the sea — symbolic of total removal, matching the cleansing in Hebrews 10:2.