Verses 48, 49. - When the Philistine arose. Apparently he was seated, as was the rule with armies in ancient times when not engaged in conflict (comp. ver. 52). When, then, he saw David emerge from the ravine, he rose, and, carrying his vast load of armour, moved slowly towards his enemy, trying to frighten him by his curses. David, meanwhile, in his light equipment, ran towards the army, Hebrew, "the rank," i.e. the Philistine line, in front of which Goliath had been sitting. As the giant's helmet had no visor, that protection not having as yet been invented, and his shield was still carried by his armour bearer, his face was exposed to David's missiles. And in those days, before firearms were invented, men by constant practice "could sling stones at a hair-breadth, and not miss" (Judges 20:16). And even if David were not quite as skilful as those Benjamites, yet, as the giant could move only very slowly, the chances were that he would hit him with one or more of his five pebbles. As it was, he struck him at his first attempt upon the forehead with such force that Goliath was stunned, and fell down upon his face to the ground.

17:48-58 See how frail and uncertain life is, even when a man thinks himself best fortified; how quickly, how easily, and by how small a matter, the passage may be opened for life to go out, and death to enter! Let not the strong man glory in his strength, nor the armed man in his armour. God resists the proud, and pours contempt on those who defy him and his people. No one ever hardened his heart against God and prospered. The history is recorded, that all may exert themselves for the honour of God, and the support of his cause, with bold and unshaken reliance on him. There is one conflict in which all the followers of the Lamb are, and must be engaged; one enemy, more formidable than Goliath, still challenges the armies of Israel. But resist the devil, and he will flee from you. Go forth to battle with the faith of David, and the powers of darkness shall not stand against you. But how often is the Christian foiled through an evil heart of unbelief!And it came to pass, when the Philistine arose,.... Or prepared for the encounter, and was in all probability in great wrath and fury at hearing what David said, and which hastened him to it:

and came and drew nigh to meet David; as fast as his unwieldy body, and heavy load of armour on him, would admit of:

that David hasted and ran toward the army; the army of the Philistines, from whence this champion came:

to meet the Philistine; to get up to him before he could draw his sword, or put himself in a posture to make use of any weapon to strike at David with.