Richter 4:15

"And the Lord discomfited Sisera, and all his chariots, and all his army, with the edge of the sword before Barak." ויּהם, as in Exo 14:24 and Jos 10:10, denotes the confounding of the hostile army by a miracle of God, mostly by some miraculous phenomenon of nature: see, besides Exo 14:24; Sa2 22:15; Psa 18:15, and Psa 144:6. The expression ויּהם places the defeat of Sisera and his army in the same category as the miraculous destruction of Pharaoh and of the Canaanites at Gibeon; and the combination of this verb with the expression "with the edge of the sword" is to be taken as constructio praegnans, in the sense: Jehovah threw Sisera and his army into confusion, and, like a terrible champion fighting in front of Israel, smote him without quarter, Sisera sprang from his chariot to save himself, and fled on foot; but Barak pursued the routed foe to Harosheth, and completely destroyed them. "All Sisera's army fell by the edge of the sword; there remained not even to one," i.e., not a single man.

The method of the history of Deborah and Barak (the heroes in this chapter) is the same with that before Here is, I. Israel revolted from God (Jdg 4:1). II. Israel oppressed by Jabin (Jdg 4:2, Jdg 4:3). III. Israel judged by Deborah (Jdg 4:4, Jdg 4:5). IV. Israel rescued out of the hands of Jabin. 1. Their deliverance is concerted between Deborah and Barak (Jdg 4:6, Jdg 4:9). 2. It is accomplished by their joint-agency. Barak takes the field (Jdg 4:10). Sisera, Jabin's general, meets him (Jdg 4:12, Jdg 4:13). Deborah encourages him (Jdg 4:14). And God gives him a complete victory. The army routed (Jdg 4:15, Jdg 4:16). The general forced to flee (Jdg 4:17). And where he expected shelter he had his life stolen from him by Jael while he was asleep (Jdg 4:18-21), which completes Barak's triumph (Jdg 4:22). and Israel's deliverance (Jdg 4:23, Jdg 4:24).