Leviticus 5:6

And he shall bring his trespass-offering (or guilt-offering) unto the Lord for his sin which he hath sinned, for the expiation of the guilt which he has loaded upon himself, a female from the flock, a lamb or a kid of the goats, for a sin-offering; and the priest shall make an atonement for him concerning his sin, cause his sin to be covered over before the face of the just and righteous God by virtue of the sacrifice which pointed forward to the perfect sacrifice of Jesus Christ.