2 The LORD said to me, “Do not be afraid of him, for I have delivered him into your hands, along with his whole army and his land. Do to him what you did to Sihon king of the Amorites, who reigned in Heshbon.”

Read Deuteronomy 3:2 Using Other Translations

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.
But the LORD said to me, 'Do not fear him, for I have given him and all his people and his land into your hand. And you shall do to him as you did to Sihon the king of the Amorites, who lived at Heshbon.'
But the LORD told me, ‘Do not be afraid of him, for I have given you victory over Og and his entire army, and I will give you all his land. Treat him just as you treated King Sihon of the Amorites, who ruled in Heshbon.’