The Story
The Valley of Elah. The Philistines camped on one ridge, Israel on the other, and between them a valley that might as well be an abyss. For forty days, morning and evening, a champion named Goliath comes out to stand in the open ground and shout (1 Samuel 17:16). He is six cubits and a span — somewhere around nine feet tall, depending on which manuscript you trust. His bronze coat of armor weighs five thousand shekels, roughly 125 pounds. The iron point of his spear weighs six hundred shekels. The shaft is like a weaver's beam (1 Samuel 17:4-7). The text wants you to feel the weight. Every detail is mass, metal, density. He is gravity in human form.
His challenge is simple: send one man. We fight. Whoever wins takes all (1 Samuel 17:8-9). And every morning and every evening for forty days, the entire army of Israel looks at this and is "dismayed and terrified" (1 Samuel 17:11). Saul, the king — the tallest man in Israel, a head above everyone else, the man literally chosen for his height — stays in his tent.
David is not a soldier. He is the youngest of eight brothers, a shepherd, and he is at the front lines for the most mundane reason imaginable: his father sent him to bring bread and cheese to his brothers (1 Samuel 17:17-18). He arrives. He hears Goliath's challenge. And his response is not tactical but theological: "Who is this uncircumcised Philistine that he should defy the armies of the living God?" (1 Samuel 17:26). Everyone else in the valley is measuring the giant against themselves. David measures the giant against God. By that math, Goliath is small.
His brother Eliab is furious — the anger of the competent older sibling watching the reckless younger one volunteer for something suicidal. "Why have you come down here? And with whom did you leave those few sheep in the wilderness?" (1 Samuel 17:28). The contempt is specific. You are a child. You have a child's job. Go home.
David is brought to Saul. Saul tries to dress him in the king's own armor — bronze helmet, coat of mail, sword. David puts it on, takes a few steps, and says: "I cannot go in these, because I am not used to them" (1 Samuel 17:39). He takes it all off. He goes to a stream and selects five smooth stones. Not one. Five. Scholars have argued about the number for centuries. Maybe he expected to miss. Maybe he knew Goliath had four brothers (2 Samuel 21:22). Maybe he was simply thorough. He puts them in his shepherd's bag, takes his sling, and walks into the valley.
Goliath sees him and is insulted. "Am I a dog, that you come at me with sticks?" (1 Samuel 17:43). He curses David by his gods. David's answer is the theological spine of the entire narrative: "You come against me with sword and spear and javelin, but I come against you in the name of the Lord Almighty, the God of the armies of Israel, whom you have defied. This day the Lord will deliver you into my hands" (1 Samuel 17:45-46). It is not bravado. It is a claim about the nature of reality. The largest thing in this valley is not the giant.
David runs toward the battle line. Toward. The text is emphatic — he ran quickly toward the battle line to meet him (1 Samuel 17:48). He reaches into his bag, slings a stone, and it strikes Goliath in the forehead. The giant falls face down on the ground. David has no sword, so he stands over Goliath, draws Goliath's own sword from its sheath, and cuts off his head (1 Samuel 17:49-51). He kills the giant with the giant's own weapon.
The Philistine army watches their champion fall. They run. And all the theological arithmetic inverts: the smallest person in the valley was the largest threat in it, and every soldier on both ridges had been calculating with the wrong numbers for forty days.