Leviticus 5:2-6

“Or if you touch anything ritually unclean, like the carcass of an unclean animal, wild or domestic, or a dead reptile, and you weren’t aware of it at the time, but you’re contaminated and you’re guilty; “Or if you touch human uncleanness, any sort of ritually contaminating uncleanness, and you’re not aware of it at the time, but later you realize it and you’re guilty; “Or if you impulsively swear to do something, whether good or bad—some rash oath that just pops out—and you aren’t aware of what you’ve done at the time, but later you come to realize it and you’re guilty in any of these cases; “When you are guilty, immediately confess the sin that you’ve committed and bring as your penalty to GOD for the sin you have committed a female lamb or goat from the flock for an Absolution-Offering. “In this way, the priest will make atonement for your sin.