Numbers 25:17-18

¹⁷Harass the Midianites, and smite them,

¹⁸for they have harassed you with their wiles, wherewith they have beguiled you in the matter of Peor, and in the matter of Cozbi, the daughter of a prince of Midian, their sister, who was slain on the day of the plague because of the matter of Peor.