Hebrews 7:27

7:27 He has no need to do every day what those priests do, to offer sacrifices first for their own sins and then for the sins of the people, since he did this in offering himself once for all.

Hebrews 9:7

9:7 But only the high priest enters once a year into the inner tent, and not without blood that he offers for himself and for the sins of the people committed in ignorance.

Hebrews 9:12

9:12 and he entered once for all into the most holy place not by the blood of goats and calves but by his own blood, and so he himself secured eternal redemption.

Hebrews 9:26

9:26 for then he would have had to suffer again and again since the foundation of the world. But now he has appeared once for all at the consummation of the ages to put away sin by his sacrifice.

Hebrews 9:28

9:28 so also, after Christ was offered once to bear the sins of many, to those who eagerly await him he will appear a second time, not to bear sin but to bring salvation.