Here "sword" refers to their attack with the use of the sword. AT: "Yahweh caused every Midianite man to fight against his fellow soldiers" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This can be stated in active form. AT: "Gideon called out the Israelites from the tribes of Naphtali, Asher, and all Mannasseh" (See: [[rc://en/ta/man/translate/figs-activepassive]])