Numbers 5:4-6

New American Standard Bible

⁴ And the sons of Israel did so and sent them outside the camp; just as the Lord had spoken to Moses, that is what the sons of Israel did.

⁵ Then the Lord spoke to Moses, saying, ⁶ “Speak to the sons of Israel: ‘^(A)When a man or woman commits any of the sins of mankind, acting unfaithfully against the Lord, and that person is guilty,