1 Chron 18:1-6 In the course of time, David defeated the Philistines and subdued them, and he took Gath and its surrounding villages from the control of the Philistines. David also defeated the Moabites, and they became subject to him and brought tribute. Moreover, David fought Hadadezer king of Zobah, as far as Hamath, when he went to establish his control along the Euphrates River. David captured a thousand of his chariots, seven thousand charioteers and twenty thousand foot soldiers. He hamstrung all but a hundred of the chariot horses. When the Arameans of Damascus came to help Hadadezer king of Zobah, David struck down twenty-two thousand of them. He put garrisons in the Aramean kingdom of Damascus, and the Arameans became subject to him and brought tribute. The Lord gave David victory everywhere he went.
David defeated all his enemies because "the Lord gave David victory everywhere he went." What defines David is his worship of God. In fact, he is known as the "sweet psalmist of Israel" (2 Sam 23:1), having written most of the hymns of praise in the Psalms. David was a great warrior for the Lord because he was first a great worshipper of the Lord.
David was the true worship-warrior of the Lord. He was not just a passive worshipper but also an active warrior. In fact, true worshippers of the Lord inevitably become true warriors of the Lord because it is impossible to draw near to God and not hear Him asks, "Whom shall I send? Who shall go for us?" (Isaiah 6:8). The best warriors for the Lord are therefore the true worshippers because they carry God's presence with them "everywhere (they) went" (v.6, 13). If a person is not a true worshiper, he becomes not a warrior but a worrier -- he worries about whether God is with him or whether the project God has given him would fail. True worshipers have the unshaken confidence that God will grant them victory whatever they do in His name because they know the Lord is with them wherever they go.
Thank You Lord for the victory we have in You! We don't have to be worriers but we can be warriors for You to defeat the enemies of God and be successful in the work You have called us to do. Amen.