Numbers 25:3-5

³Israel joined himself to Baal Peor, and the LORD’s anger burned against Israel.

⁴The LORD said to Moses, “Take all the chiefs of the people, and hang them up to the LORD before the sun, that the fierce anger of the LORD may turn away from Israel.”

⁵Moses said to the judges of Israel, “Everyone kill his men who have joined themselves to Baal Peor.”