The strangers of the land — That is, of the Canaanites, who will be turned out of their possessions, and become as strangers in their own land. This aggravates their folly to worship such gods as could neither preserve their friends, nor annoy their enemies.
Related Commentaries of Deuteronomy 31:16
Deuteronomy 31:16
16 And the LORD said unto Moses, Behold, thou shalt sleepa with thy fathers; and this people will rise up, and go a whoring after the gods of the strangers of the land, whither they go to be among them, and will forsake me, and break my covenant which I have made with them.