Came out - From their city, Rabbah (Deuteronomy 3:11; Deuteronomy 3:15), which was 15 or 20 miles from Medeba, where…

At the entering in of the gate. —The Ammonites and their allies formed separate armies, the former taking their stand immediately …

And the children of Ammon came out
Either out of Rabbah their metropolis, as Josephus ^F21; or rather out …

Those who are at war with the Son of David not only give the provocation but begin the war. God has forces to send against those who set his wrath …