Leviticus 22:14

22:14 “‘If a man eats a holy offering by mistake, he must add one fifth to it and give the holy offering to the priest.

Leviticus 4:2

4:2 “Tell the Israelites, ‘When a person sins by straying unintentionally from any of the Lord’s commandments which must not be violated, and violates any one of them –

Leviticus 4:22

For the Leader

4:22 “‘Whenever a leader, by straying unintentionally, sins and violates one of the commandments of the Lord his God which must not be violated, and he pleads guilty,

Leviticus 4:27

For the Common Person

4:27 “‘If an ordinary individual sins by straying unintentionally when he violates one of the Lord’s commandments which must not be violated, and he pleads guilty

Leviticus 5:15

5:15 “When a person commits a trespass and sins by straying unintentionally from the regulations about the Lord’s holy things, then he must bring his penalty for guilt to the Lord, a flawless ram from the flock, convertible into silver shekels according to the standard of the sanctuary shekel, for a guilt offering.

Leviticus 5:18

5:18 and must bring a flawless ram from the flock, convertible into silver shekels, for a guilt offering to the priest. So the priest will make atonement on his behalf for his error which he committed (although he himself had not known it) and he will be forgiven.