Numbers 25:7-8

⁷And Phinees the son of Eleazar, the son of Aaron the priest, saw it, and rose out of the midst of the congregation, and took a javelin in his hand,

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.