Numbers 25:15
And the name of the Midianitish woman that was slain was Cozbi, the daughter of Zur; he was head over a people, and of a chief house in Midian. And the name of the Midianitish woman that was slain was Cozbi, the daughter of Zur; he was head over a people, and of a chief house in Midian.
This verse belongs to the account of Israel's national apostasy at Baal-peor, when the people joined in heathen worship. The transgression at that time spread through the people, including their rulers and leading men. It identifies the slain Midianite woman as Cozbi, the daughter of Zur, who was head over a people and of a chief house in Midian. The chapter shows that God made a clear distinction in judgment, destroying those who followed Baal-peor while those who clung to the Lord lived.