Deut 3:2-4

2The Lord said to me, “Do not fear him, for I have handed him over to you, along with his people and his land. Do to him as you did to King Sihon of the Amorites, who reigned in Heshbon.”3So the Lord our God also handed over to us King Og of Bashan and all his people. We struck him down until not a single survivor was left.4At that time we captured all his towns; there was no citadel that we did not take from them—sixty towns, the whole region of Argob, the kingdom of Og in Bashan.