Yahweh confused Sisera, and all his chariots, and all his host, with the edge of the sword before Barak; and Sisera alighted from his chariot, and fled away on his feet.
Evidently God sent an unseasonable thunderstorm that mired Sisera’s chariots in the softened valley soil (cf. Judges 5:4-5; Judges 5:20-21). The main battle apparently took place near Taanach near the south central portion of the valley (Judges 5:19). The Israelites destroyed the whole Canaanite army that participated in this encounter (Judges 4:16).