Deuteronomy 3:2

3:2 The Lord, however, said to me, “Don’t be afraid of him because I have already given him, his whole army, and his land to you. You will do to him exactly what you did to King Sihon of the Amorites who lived in Heshbon.”

Deuteronomy 3:6

3:6 We put all of these under divine judgment just as we had done to King Sihon of Heshbon – every occupied city, including women and children.