Of a stranger, i.e. of a strange nation, which the Canaanites possess; for though the city Jerusalem had been taken by Caleb, Jud 1, yet the strong fort of Zion was still in their hands, 2Sa_5:6,7, whence it is likely they did much molest, and afterwards, by God’s permission, and for the punishment of their sin, drive out the Israelites who dwelt there.