C. F. Keil and Franz Delitzsch on Judges 11:4-6

Jdg 11:4-6

But when the Ammonites made war upon Israel some time afterwards, the elders of Gilead (= “the princes of Gilead,” Jdg 10:18) went to fetch Jephthah out of the land of Tob, to make this brave warrior their leader. In Jdg 11:4 the account of the war between the Ammonites and Israel, which is mentioned in Jdg 10:17, is resumed, and its progress under Jephthah is then more fully described. “In process of time” (מיּמים, a diebus, i.e., after the lapse of a long period, which cannot be more precisely defined), sc., after the expulsion of Jephthah from his home (see Jdg 14:8; Jdg 15:1; Jos 23:1). קצין signifies a leader in war (Jos 10:24), and is therefore distinguished in Jdg 11:11 from ראשׁ, a chief in peace and war.