Leviticus 5:17-19

17And if any one sin and do against any of all the commandments of Jehovah what should not be done, and hath not known [it], yet is he guilty, and shall bear his iniquity. 18And he shall bring a ram without blemish out of the small cattle, according to thy valuation, as trespass-offering, unto the priest; and the priest shall make atonement for him concerning his inadvertence wherein he sinned inadvertently, and knew [it] not, and it shall be forgiven him. 19It is a trespass-offering: he hath certainly trespassed against Jehovah.