Numbers 15:25

And the priest shall make atonement for all the congregation of the people of Israel , and they shall be forgiven , because it was a mistake , and they have brought their offering , a food offering to the Lord , and their sin offering before the Lord for their mistake .

The priest is to make atonement for the whole Israelite community, and they will be forgiven, for it was not intentional and they have presented to the Lord for their wrong a food offering and a sin offering.

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 :