Leviticus 5:18-19

American Standard Version

¹⁸ And he shall bring a ram without blemish out of the flock, according to thy estimation, for a trespass-offering, unto the priest; and the priest shall make atonement for him concerning the thing wherein he erred unwittingly and knew it not, and he shall be forgiven. ¹⁹ It is a trespass-offering: he is certainly guilty before Jehovah.