Leviticus 5:4-6

New Catholic Bible

⁴ Or if someone rashly lets an oath slip from his lips, to do evil or to do good, in anything by which a person who swears a rash oath, and he does not realize it, when he comes to know it, he shall be guilty for any one of these thing s. ⁵ Therefore, when someone is guilty of any one of these things, he shall confess the sin he has committed. ⁶ He shall bring a guilt offering to the Lord for the sin that he has committed: a female goat or sheep from the flock as a sin offering. The priest shall make atonement for him and for his sin.