2 Kings 10:32-33

32In those days, the Lord began to make Israel's land smaller. King Hazael of Syria could attack the Israelites anywhere in their land

33east of the Jordan River. He took from them all the land of Gilead. That included the land that belonged to the tribes of Gad, Reuben and Manasseh. Hazael took the land all the way from Aroer, along the Arnon Valley to Gilead and Bashan.