Leviticus 5:1-6

1“ ‘If anyone sins because they do not speak up when they hear a public charge to testify regarding something they have seen or learned about, they will be held responsible. 2“ ‘If anyone becomes aware that they are guilty—if they unwittingly touch anything ceremonially unclean (whether the carcass of an unclean animal, wild or domestic, or of any unclean creature that moves along the ground) and they are unaware that they have become unclean, but then they come to realize their guilt; 3or if they touch human uncleanness (anything that would make them unclean) even though they are unaware of it, but then they learn of it and realize their guilt; 4or if anyone thoughtlessly takes an oath to do anything, whether good or evil (in any matter one might carelessly swear about) even though they are unaware of it, but then they learn of it and realize their guilt— 5when anyone becomes aware that they are guilty in any of these matters, they must confess in what way they have sinned. 6As a penalty for the sin they have committed, they must bring to the Lord a female lamb or goat from the flock as a sin offering; and the priest shall make atonement for them for their sin.