Enablement–a Trustworthy Lord (vv. 9-12). David earnestly prayed that the Lord would honor His Word and give His beloved people victory over their enemies, and the Lord answered. David made it clear that he wasn’t looking back at the defeat (vv. 9-10). He was the kind of leader who looked to the future and trusted the Lord. The “fortified city” was probably Petra (or Sela), the capital of Edom. David didn’t interpret one setback as the sign of total defeat. He was making a great name for himself by his many victories, so perhaps he needed this one defeat to humble him and drive him closer to the Lord. David didn’t trust in himself or in his capable officers or his valiant soldiers (v. 11). He trusted fully in the Lord, and the Lord honored his faith. The enemy would be completely defeated–trampled into the dirt–and Israel would triumph. Israel rallied to the “banner of God’s truth” (v. 4), and the Lord gave them victory (1 John 5:4). “Edom will be conquered; Seir [Edom], his enemy, will be conquered, but Israel will grow strong” (Num. 24:18 niv).