IV. God himself routs the enemy's army, v. 15. Barak, in obedience to Deborah's orders, went down into the valley, though there upon the plain the iron chariots would have so much the more advantage against him, quitting his fastnesses upon the mountain in dependence upon the divine power; for in vain is salvation hoped for from hills and mountains; in the Lord alone is the salvation of his people, Jer. iii. 23. And he was not deceived in his confidence: The Lord discomfited Sisera. It was not so much the bold and surprising alarm which Barak gave their camp that dispirited and dispersed them, but God's terror seized their spirits and put them into an unaccountable confusion. The stars, it seems, fought against them, ch. v. 20. Josephus says that a violent storm of hail which beat in their faces gave them this rout, disabled them, and drove them back; so that they became a very easy prey to the army of Israel, and Deborah's words were made good: "The Lord has delivered them into thy hand; it is now in thy power to do what thou wilt with them."