Leviticus 5:18-19 English Standard Version (ESV)

18. He shall bring to the priest a ram without blemish out of the flock, or its equivalent for a guilt offering, and the priest shall make atonement for him for the mistake that he made unintentionally, and he shall be forgiven.

19. It is a guilt offering; he has indeed incurred guilt before the Lord.”

Leviticus 5