Leviticus 5:17-19 - Unknown Trespass
17 "If a person sins and does what the LORD commanded is not to be done, and if he didn't know that he had sinned, then he will be guilty nevertheless. 18 He is to bring from the flock to the priest a ram without defect, estimated as to its value in silver shekels, as a guilt offering. Then the priest is to make atonement for him concerning his inadvertent act that he committed through ignorance, and it will be forgiven him. 19 It's a sin offering for his guilt in the LORD's presence."