Sur was one of the five kings (or chiefs) of Midian who were killed by the Israelites after the incident at Peor. He was the father of Cozbi, the Midianite woman who was killed by Phinehas. His death was part of God's judgment against the Midianites for their role in leading Israel into idolatry and immorality.
18because they treated you as enemies when they deceived you in the affair of Peor, and in the affair of Cozbi, the daughter of a Midianite leader, their own sister, who was killed on the day the plague came because of Peor."
18because they treated you as enemies when they deceived you in the affair of Peor, and in the affair of Cozbi, the daughter of a Midianite leader, their own sister, who was killed on the day the plague came because of Peor."
21all the towns of the plateau and the entire kingdom of Sihon king of the Amorites, who reigned in Heshbon. Moses had defeated him and the chiefs of Midian—Evi, Rekem, Zur, Hur, and Reba—princes allied with Sihon who lived in that land.
After the victory over Midian, it was specifically noted that Kosbi was the daughter of Sur, a tribal chief in Midian, which underscored the seriousness of Midian's seduction of Israel.
16"These were the very ones who followed Balaam's advice and enticed the Israelites to be unfaithful to the LORD in the affair at Peor, so that a plague struck the LORD's assembly.