Arise, get you up unto the wealthy nation, that dwelleth without care, saith the LORD, which have neither gates nor bars, which dwell alone.
Get you up unto the wealthy nation - rather, 'the tranquil nation' (1 Chronicles 4:40, "The land was wide, and quiet, and peaceable").
Which have neither gates nor bars. The Arabs, lying out of the track of the contending powers of Asia and Africa, took no measures of defense, and had neither walled cities nor gates (Ezekiel 38:11). They thought their scanty resources and wilderness - position would tempt no foe.
Which dwell alone - separated from other nations, without allies; and from one another scattered asunder. So as to Israel's isolation (Numbers 23:9; Deuteronomy 33:28; Micah 7:14).