Numbers 15:25

And the priest shall make atonement for all the congregation of the children of Israel, and they shall be forgiven; for it was an error, and they have brought their oblation, an offering made by fire unto Jehovah, and their sin-offering before Jehovah, for their error:

Leviticus 4:20

Thus shall he do with the bullock; as he did with the bullock of the sin-offering, so shall he do with this; and the priest shall make atonement for them, and they shall be forgiven.

Romans 3:25

whom God set forth to be a propitiation, through faith, in his blood, to show his righteousness because of the passing over of the sins done aforetime, in the forbearance of God;

Leviticus 4:26

And all the fat thereof shall he burn upon the altar, as the fat of the sacrifice of peace-offerings; and the priest shall make atonement for him as concerning his sin, and he shall be forgiven.

Luke 23:34

And Jesus said, Father, forgive them; for they know not what they do. And parting his garments among them, they cast lots.

Acts 13:39

and by him every one that believeth is justified from all things, from which ye could not be justified by the law of Moses.

Hebrews 2:17

Wherefore it behooved him in all things to be made like unto his brethren, that he might become a merciful and faithful high priest in things pertaining to God, to make propitiation for the sins of the people.

1 John 2:2

and he is the propitiation for our sins; and not for ours only, but also for the whole world.

Treasury of Scripture Knowledge

Summary

And the priest shall make an atonement for all the congregation of the children of Israel, and it shall be forgiven them; for it is ignorance: and they shall bring their offering, a sacrifice made by fire unto the LORD, and their sin offering before the LORD, for their ignorance:

Forgiven them

General references

Bible References

The priest

Leviticus 4:20
Thus shall he do with the bullock; as he did with the bullock of the sin-offering, so shall he do with this; and the priest shall make atonement for them, and they shall be forgiven.
Romans 3:25
whom God set forth to be a propitiation, through faith, in his blood, to show his righteousness because of the passing over of the sins done aforetime, in the forbearance of God;
1 John 2:2
and he is the propitiation for our sins; and not for ours only, but also for the whole world.

Forgiven them

Luke 23:34
And Jesus said, Father, forgive them; for they know not what they do. And parting his garments among them, they cast lots.
Acts 13:39
and by him every one that believeth is justified from all things, from which ye could not be justified by the law of Moses.

General references

Leviticus 4:19
And all the fat thereof shall he take off from it, and burn it upon the altar.

American Standard Version Public Domain