Numbers 25:7

⁵And Moses said to the tribes of Israel, Slay ye every one his friend that is consecrated to Baal-peor.

⁶And, behold, a man of the children of Israel came and brought his brother to a Midianitish woman before Moses, and before all the congregation of the children of Israel; and they were weeping at the door of the tabernacle of witness.

— Numbers 25:7 —

⁸and went in after the Israelitish man into the chamber, and pierced them both through, both the Israelitish man, and the woman through her womb; and the plague was stayed from the children of Israel.

⁹And those that died in the plague were four and twenty thousand.