6 Bible Verses about Atonement, Made Once

who hath not necessity daily, as the highpriests, to offer up sacrifice first for his own sins, and then for those of the people; for this he did once for all, when he offered up himself.

For Christ did not enter into a sanctuary made with hands, which is only a copy of the true one, but into heaven itself, now to appear in the presence of God in our behalf. Nor yet to make an offering of himself many times, as the highpriest entereth into the holy place every year with blood of others; for then must he have suffered many times since the foundation of the world; but now once in the end of the world he hath appeared, to put away sin by means of his sacrifice.read more.
And as it is appointed to men once to die, but after this the judgment; so also Christ having been once offered up to bear the sins of many, will appear the second time, without sin, for the salvation of those who are waiting for him.

And in this will we have been sanctified through the offering of the body of Jesus Christ once for all.

but he, after he had offered one sacrifice for sins, sat down for ever on the right hand of God,

For by one offering he hath perfected for ever those who are sanctified.

For Christ also suffered once for sins, the righteous one for the unrighteous, that he might bring you to God, being put to death in the flesh, but made alive in the spirit;