II. Sisera, upon notice of Barak's motions, takes the field with a very numerous and powerful army (v. 12, 13): They showed Sisera, that is, it was shown to him. Yet some think it refers to the Kenites, mentioned immediately before, v. 11. They gave Sisera notice of Barak's rendezvous, there being peace at this time between Jabin and that family, v. 17. Whether they intended it as a kindness to him or no, it served to accomplish what God had said by Deborah (v. 7): I will draw unto thee Sisera. Sisera's confidence was chiefly in his chariots; therefore particular notice is taken of them, 900 chariots of iron, which, with the scythes fastened to their axle-trees, when they were driven into an army of footmen, did terrible execution. So ingenious have men been in inventing methods of destroying one another, to gratify those lusts from which come wars and fightings.