And he armed David with his own armor,—he put a helmet of brass upon his head, and armed him with a coat of mail. But when David girded his sword upon his armor, and tried to walk, he said to Saul, "I cannot go with these, for I am not used to them." And he put them off.
Then he took his staff in his hand and went and chose five smooth stones out of the brook, and put them in a shepherd's bag which he had; and his sling was in his hand; and he went out and drew near to the Philistine.
And the Philistine came on and drew near to David; and the man that bore his shield went before him. And when the Philistine looked about and saw David, he disdained him, for David was but a boy, and ruddy, and of a fair countenance. And he said to David, "Am I a dog, that thou comest to me with a cudgel?" And with curses he cried out again, "Come to me, and I will give thy flesh unto the fowls of the air, and to the beasts of the field."
But David looked at him, and answered, "Thou comest to me with a sword, and with a spear, and with a shield; but I come to thee in the name of the Lord of hosts, the God of the armies of Israel, whom thou hast defied. This day will the Lord deliver thee into my hand; and I will smite thee, and take thy head from thee, and I will give the carcasses of the host of the Philistines this day unto the fowls 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 all this assembly shall know that the Lord saveth not with sword and spear; for the battle is the Lord's, and he will give you into our hands."
And then, when the Philistine arose, and came, and drew nigh to meet David, David hasted, and ran toward the army to meet the Philistine. And when he was a little way from him, he put his hand in his bag, and took thence a stone, and put it in his sling, and slung it, and smote the Philistine in the forehead, so that the stone sank into his forehead; and he fell on his face to the earth.
And David ran, and stood upon the Philistine, and took his sword, and drew it out of its sheath, and slew him with it.
Then, when the Philistines saw that their champion was dead, they fled. But the army of Israel pursued them, and victory was with the men of Israel.
And after the battle, David was taken to the king's tent, and made a captain over many men; and he went no more to his father's house, to herd the sheep, but became a man, in the king's service.