1 Samuel 17:4-14

And there went out from the camp of the Philistines, a man of illegitimate birth, named Goliath of Gath, whose height was six cubits and a palm. And he had a helmet of brass upon his head, and he was clothed with a breastplate of scales. Moreover, the weight of his breastplate was five thousand shekels of brass. And he had plates of brass on his lower legs, and a small shield of brass was covering his shoulders. Now the shaft of his spear was like the beam used by a weaver. And the iron of his spear held six hundred shekels of iron. And his armor bearer went before him. And standing still, he cried out to the battle lines of Israel, and he said to them: "Why have you arrived, prepared for battle? Am I not a Philistine, and are you not the servants of Saul? Choose one man from among you, and let him descend to do battle alone. If he is able to fight with me and to strike me down, we will be your servants. But if I will prevail over him, and strike him down, you will be the servants, and you will serve us." And the Philistine was saying: "I have reproached the troops of Israel today. Present a man to me, and let him undertake a fight against me alone." And Saul and all the Israelites, hearing these words of the Philistine in this manner, were stupefied and exceedingly afraid. Now David was the son of an Ephrathite man, the one mentioned above, from Bethlehem of Judah, whose name was Jesse. He had eight sons, and during the days of Saul, he was an elderly man, and of great age among men. Now his three eldest sons followed Saul into battle. And the names of his three sons, who went to the battle, were Eliab, the firstborn, and the second, Abinadab, and the third Shammah. But David was the youngest. Therefore, when the three eldest had followed Saul