"Chapter 39—The Conquest of Bashan This chapter is based on Deuteronomy 2 ; 3:1-11 . After passing to the south of Edom, the Israelites turned northward, and again set their faces toward the Promised Land. Their route now lay over a vast, elevated plain, swept by cool, fresh breezes from the hills. It was a welcome change from the parched valley through which they had been traveling, and they pressed forward, buoyant and hopeful. Having crossed the brook Zered, they passed to the east of the land of Moab; for the command had been given, “Distress not the Moabites, neither contend with them in battle: for I will not give thee of their land for a possession; because I have given Ar unto the children of Lot.” And the same direction was repeated concerning the Ammonites, who were also descendants of Lot. PP 433"
"And the Lord said unto me, Distress not the Moabites, neither contend with them in battle: for I will not give thee of their land for a possession; because I have given Ar unto the children of Lot for a possession."
The EGW passage explicitly states that it is based on Deuteronomy 2 and quotes directly from Deuteronomy 2:9.
"formidable army struck terror to the Israelites, who were poorly prepared for an encounter with well-armed and well-disciplined forces. So far as skill in warfare was concerned, their enemies had the advantage. To all human appearance, a speedy end would be made of Israel. PP 433.2"
"When the Lord thy God shall bring thee into the land whither thou goest to possess it, and hath cast out many nations before thee, the Hittites, and the Girgashites, and the Amorites, and the Canaanites, and the Perizzites, and the Hivites, and the Jebusites, seven nations greater and mightier than thou;"
Both passages describe the Israelites facing a more powerful enemy. The EGW passage highlights the Israelites' lack of preparation, while Deuteronomy 7:1 describes the nations they would face as 'greater and mightier'.