4 Bible Verses about Atonement, in OT

but into the second only the high-priest went once a year; and that not without blood, which he offered for himself, and for the sins of the people committed through ignorance.

And according to the law almost all things are purified with blood; and without shedding of blood there is no remission.

For every high-priest taken from among men, is appointed for the sake of men in things relating to God, that he may offer gifts and sacrifices for sins: who can have due compassion on the ignorant and those that are going astray; seeing he himself also is surrounded with infirmity: and for this reason he ought, as for the people, so also for himself, to offer sacrifice for sins.

For every high-priest taken from among men, is appointed for the sake of men in things relating to God, that he may offer gifts and sacrifices for sins: