Hebrews 10:12-14

The author keeps coming back to this central action of Christ sitting down at God’s right hand. Notice also that he mentions Christ’s waiting. He is no longer in a mode where He appears to His servants and then disappears again. Once He sat down, He has been waiting until the culmination of this age, and then—as it says in Hebrews 9:28—He will appear a second time. But up until that second appearance, He is waiting.

Hebrews 10:11-17

It just took one and then all of those other offerings became unnecessary. Because the one perfect sacrifice was made. So the author makes sure we understand here that His sacrifice is redeeming, a payment for cleansing or clearing sin, forgiving it, and also bearing it away or putting away or removing sin.