10 And by that will we have been sanctified through the offering of the body of Jesus Christ once for all.
Hebrews 9
26 for then he would have had to suffer repeatedly since the foundation of the world. But as it is, he has appeared once for all at the end of the ages to put away sin by the sacrifice of himself.
Philippians 2
6 who, though he was in the form of God, did not count equality with God a thing to be grasped,7 but made himself nothing, taking the form of a servant, being born in the likeness of men.8 And being found in human form, he humbled himself by becoming obedient to the point of death, even death on a cross.9 Therefore God has highly exalted him and bestowed on him the name that is above every name,
Romans 6
6 We know that our old self was crucified with him in order that the body of sin might be brought to nothing, so that we would no longer be enslaved to sin.