Numbers 15:26

24then it shall be, if it was done unwittingly, without the knowledge of the congregation, that all the congregation shall offer one young bull for a burnt offering, for a pleasant aroma to the LORD, with its meal offering and its drink offering, according to the ordinance, and one male goat for a sin offering.

25The 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 offering, an offering made by fire to the LORD, and their sin offering before the LORD, for their error.

26All the congregation of the children of Israel shall be forgiven, as well as the stranger who lives as a foreigner among them; for with regard to all the people, it was done unwittingly.

27“‘If a person sins unwittingly, then he shall offer a female goat a year old for a sin offering.

28The priest shall make atonement for the soul who errs when he sins unwittingly before the LORD. He shall make atonement for him; and he shall be forgiven.