Leviticus 5:1

“If someone sins by failing to testify when he hears a public charge about something he has witnessed, whether he has seen it or learned of it, he shall bear the iniquity.

And if a soul sin, and hear the voice of swearing, and is a witness, whether he hath seen or known of it; if he do not utter it, then he shall bear his iniquity.

“‘If anyone sins, in that he hears a public adjuration to testify, he being a witness, whether he has seen or known, if he doesn’t report it, then he shall bear his iniquity.

And if any one sin, in that he heareth the voice of adjuration, he being a witness, whether he hath seen or known, if he do not utter it, then he shall bear his iniquity.