Numbers 15:25

And the priest expiated for all the assembly of the sons of Israel, and it was forgiven to them; for it is an error; and they brought their offering a sacrifice to Jehovah, and their sin before Jehovah, for their error.

Leviticus 4:20

And he did to the bullock as he did to the bullock of sin, thus he did to it; and the priest shall expiate for them, and it was forgiven to them.

Romans 3:25

Whom God had set before a propitiatory by faith in his blood, for a manifestation of his justice by passing over of sins before existing, in the sufferance of God;

Leviticus 4:26

And all the fat he shall burn upon the altar as the fat of the sacrifice of peace: and the priest expiated for him from his sin, and it was forgiven to him.

Luke 23:34

And Jesus said, Father, let them go; for they know not what they do. And having divided his garments, they cast lots.

Acts 13:39

And from all which ye could not be justified by Moses' law, every one believing in him is justified.

Hebrews 2:17

Wherefore in all things it was necessary to be made like to the brethren, that he might be a merciful and faithful chief priest in things towards God, in order to propitiate for the sin 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
And he did to the bullock as he did to the bullock of sin, thus he did to it; and the priest shall expiate for them, and it was forgiven to them.
Romans 3:25
Whom God had set before a propitiatory by faith in his blood, for a manifestation of his justice by passing over of sins before existing, in the sufferance 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, let them go; for they know not what they do. And having divided his garments, they cast lots.
Acts 13:39
And from all which ye could not be justified by Moses' law, every one believing in him is justified.

General references

Leviticus 4:19
And he shall lift up all the fat from it, and he burnt it upon the altar.