Leviticus 5:17-19

New Catholic Bible

¹⁷ When someone sins and does any of the things that the Lord has forbidden, even if he does not realize he did it, he has still committed an offense and must bear his guilt. ¹⁸ He shall bring a ram without defect from the flock that is the value of the price of a guilt offering. The priest shall make atonement for the sin which he unknowingly committed and he shall be forgiven. ¹⁹ It is a guilt offering, for he was certainly guilty before the Lord.”