In Deuteronomy 3 it is substantially similar with Bashan. Og the king came out, and as with Heshbon, so with Bashan. “Jehovah said unto me, Fear 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. So Jehovah our God delivered into our hands Og also, the king of Bashan, and all his people.” All this is brought out to Israel as the fruit of obeying Jehovah.
Deuteronomy 1 lets us see the end of disobedience; Deuteronomy 2 and 3 give us to know as clearly the result of obedience. Nothing can be more manifest than the moral groundwork which Moses is preparing for all the rest of the book that follows.