Deuteronomy 3:2

3:2 Yahweh said to me, Don't fear him; for I have delivered him, and all his people, and his land, into your hand; and you shall do to him as you did to Sihon king of the Amorites, who lived at Heshbon.
-World English Bible

Other Translation

3:2 And the LORD said unto me, Fear him not: for I will deliver him, and all his people, and his land, into thy hand; and thou shalt do unto him as thou didst unto Sihon king of the Amorites, which dwelt at Heshbon.
-King James Version