Leviticus 5:1-2

The Voice

5 Eternal One: When anyone sins by hearing a public call to testify about a matter he has seen or knows something about, yet he does not speak up, then he is considered guilty and must be punished. ² If anyone has physical contact with some impure thing such as the carcass of a ritually unclean wild animal, domestic animal, or even an insect—even if he is unaware of the incident—he has become ritually unclean and must accept the consequences.