'Atone' in the Bible

who gave Himself [as a sacrifice to atone] for our sins [to save and sanctify us] so that He might rescue us from this present evil age, in accordance with the will and purpose and plan of our God and Father—

so that He might redeem and liberate those who were under the Law, that we [who believe] might be adopted as sons [as God’s children with all rights as fully grown members of a family].

thereby becoming like his brothers in every way, so that he could be a merciful and faithful high priest in service to God and could atone for the people's sins.

Now where there is [absolute] forgiveness and complete cancellation of the penalty of these things, there is no longer any offering [to be made to atone] for sin.

For if we go on willfully and deliberately sinning after receiving the knowledge of the truth, there no longer remains a sacrifice [to atone] for our sins [that is, no further offering to anticipate],