Romans 3:25
He it is whom God put forward as a Mercy-seat, rendered efficacious through faith in His blood, in order to demonstrate His righteousness-- because of the passing over, in God's forbearance, of the sins previously committed--
Luke 23:34
Jesus prayed, "Father, forgive them, for they know not what they are doing." And they divided His garments among them, drawing lots for them;
Acts 13:39
and in Him every believer is absolved from all offences, from which you could not be absolved under the Law of Moses.
Hebrews 2:17
And for this purpose it was necessary that in all respects He should be made to resemble His brothers, so that He might become a compassionate and faithful High Priest in things relating to God, in order to atone for the sins of the people.
1 John 2:2
and He is an atoning sacrifice for our sins, and not for ours only, but also for the sins of the whole world.