Then David said to the Philistine, “You come to me with a sword and with a spear and with a javelin, but I come to you in the name of the Lord of hosts, the God of the armies of Israel, whom you have defied. This day the Lord will deliver you into my hand, and I will strike you down and cut off your head. And I will give the dead bodies of the host of the Philistines this day to the birds of the air and to the wild beasts of the earth, that all the earth may know that there is a God in Israel, and that all this assembly may know that the Lord saves not with sword and spear. For the battle is the Lord’s, and he will give you into our hand.” —1 Samuel 17:45–47 (ESV)
The story of David and Goliath is one of the best known of the Bible. Long before becoming king, young David is brave enough to fight the greatest warrior the Philistines have—a giant of a man, Goliath. This man, with the Philistine army behind him, would taunt the army of Israel day by day, daring God’s people to send a man to fight him. When no one else would go, David stepped up. Of course, we know the end of the story: David, with one strike to Goliath’s head with a stone from a sling, felled the Giant and made good on his promise in the verses above.
David’s words just before beating Goliath are striking. He has the courage to declare victory. But this is not the puffing up of a proud fighter. Rather, David declares that God would have the victory, the Lord would deliver. For what purpose? “…that all the earth may know that there is a God in Israel, and that all this assembly may know that the Lord saves not with sword and spear.”
As you fight the good fight of the Christian faith, remember that it is the Lord who delivers. Be confident, expecting success—not because of how great you are, but because of how great God is. Say with David, “the battle is the Lord’s.” As you teach others to persevere and pursue success, remind them, too, that we pursue success for God’s glory, that the world may know His Greatness.