Peor

And Balak took Balaam to the top of Peor, which overlooks the wasteland.

For they assailed you deceitfully when they seduced you in the matter of Peor and their sister Cozbi, the daughter of the Midianite leader, the woman who was killed on the day the plague came because of Peor.”

“Look, these women caused the sons of Israel, through the counsel of Balaam, to turn unfaithfully against the LORD at Peor, so that the plague struck the congregation of the LORD.

Was not the sin of Peor enough for us, from which we have not cleansed ourselves to this day? It even brought a plague upon the congregation of the LORD.