II. The equipment of faith. Saul meant to honour as well as to secure David by dressing him in his own royal attire, and by encumbering him by the help of sword and helmet. And David was willing to be so fitted out, for it is no part of the courage of faith to disdain any outward helps. But he soon found that he could not move freely in the unaccustomed armour, and flung it off, like a wise man. His motive was partly common sense, which told him not to choose weapons that his antagonist could handle better than he; and partly reliance on God, which told him that he was safer with no armour but his shepherd's dress and with only his sling in his hand. So there he stands, drawn for us with wonderful vividness, in one hand his staff, in the other his sling, both familiar and often used, and by his side the simple wallet which had held his frugal meal, and now received the smooth pebbles that he picked up as he passed the gulley to the Philistine side of the valley.
How graphically the contrast is drawn between him and Goliath, as the latter conies forth swelling with his own magnificence, and preceded by his shield-bearer! He was 'brass' all over; note the kind of amused emphasis with which the word is repeated in the half-satirical and marvellously lifelike portrait of him in verses 5-8; 'brass' here, 'brass' there, 'brass' everywhere; and, not content with one shield dangling at his back, he has a man to carry another in front of him as he struts. David seems to have crossed the ravine, and to have come close up to Goliath before he was observed; and then, with almost a snort of contempt, the giant resents the insult of sending such a foe to fight _him_ with such weapons. Perhaps he was nearer the truth than he thought, when he asked if he was a dog; and any stick will do, as the proverb says, to beat that animal, especially if God guards the hand that holds it.
The five smooth stones have become the symbol of the insignificant means, in the world's estimate, which God uses in faithful hands to slay the giants of evil. The weapons of our warfare are not carnal, but they are mighty. Faith unarmed is armed with more than triple steel, and a sling in its hand is more fatal than a sword. Sometimes in kindness and sometimes in malice, the world tempts us to fight evil with its own weapons, and to put on its unfamiliar armour. The Church as a whole, and individual Christians, have often been hampered, and all but smothered, in Saul's harness. The more simply we keep ourselves to the simple methods which the word of God enjoins, and to the simple weapons which ought to be the easiest for a Christian, the more likely shall we be to conquer. Goliath is not to be encountered with sword and armour which is, after all, but a shabby copy of the tons of brass which he wears, but he does not know what to make of the sling, and does not see the stone till it crashes his skull in.
III. Note faith's anticipation of victory. The dialogue before the battle has many parallels in classical times and among savage peoples. Goliath's bluster is full of contempt of David and truculent self-confidence. Its coarseness is characteristic,--he will make his boyish antagonist food for vultures and jackals. It is exactly what a bully would say. David's answer throbs with buoyant confidence, and stands as a stimulating example of the temper in which God's soldiers should go out to every fight, no matter against what odds. It fully recognises the formidable armoury of the enemy,--sword for close quarters, spear to thrust with, and javelin to fling from a distance, every weapon that ingenuity could fashion and trained skill could wield. Goliath was a walking arsenal, and little David took count of his weapons as they clanked and flashed. It is no part of faith's triumph to ignore the number and sharpness of the enemy's arms. But faith sees them all, and keeps unterrified and unashamed of the poor leathern sling and smooth stones. The unarmed hand which grasps God's hand should never tremble; and he who can say 'I come ... in the name of the Lord of hosts,' has no need to be afraid of an army of Goliaths, though each bristled with swords and spears like a porcupine.