Leviticus 5:17-19

“If a person sins and does something the LORD has commanded not to be done, even if he does not know it, he is still guilty. He is responsible for his sin. He must bring the priest a male sheep from the flock, one that has nothing wrong with it and that is worth the correct amount. It will be a penalty offering. Though the person sinned without knowing it, with this offering the priest will remove the sin so the person will belong to the LORD, and the LORD will forgive him. The person is guilty of doing wrong, so he must give the penalty offering to the LORD.”