Another reason for getting rid of the fearful is that fear is the opposite of faith, and that therefore, where it is uppermost, the door by which God's power can enter to strengthen is closed. Not that faith must be free of all admixture of fear, but that it must subdue fear, if a man is to be God's warrior, fighting in His strength. Many a tremor would rock the hearts of the ten thousand who remained, but they so controlled their terror that it did not overcome their faith. We do not need, for our efficiency in Christ's service, complete exemption from fear, but we do need to make the psalmist's resolve ours: 'I will trust, and not be afraid.' Terror shuts the door against the entrance of the grace which makes us conquerors, and so fulfils its own forebodings; faith opens the door, and so fulfils its own confidences. III. Note the final test. God required but few men, but He required that these should be fit. The first test had sifted out the brave and willing. The liquor was none the less, though so much froth had been blown off. As Thomas Fuller says, there were 'fewer persons, but not fewer men,' after the poltroons had disappeared. The second test, 'a purgatory of water,' as the same wise and witty author calls it, was still more stringent. The dwindled ranks were led down from their camp on the slopes to the fountain and brook which lay in the valley near the Midianites' camp. Gideon alone seems to have known that a test was to be applied there; but he did not know what it was to be till they reached the spring, and the soldiers did not know that they were determining their fate when they drank. The two ways of drinking clearly indicated a difference in the men. Those who glued their lips to the stream and swilled till they were full, were plainly more self-indulgent, less engrossed with their work, less patient of fatigue and thirst, than those who caught up enough in their curved palms to moisten their lips without stopping in their stride or breaking rank. The former test was self-applied, and consciously so. This is no less self-applied, though unconsciously. God shuts out no man from His army, but men shut themselves out; sometimes knowingly, by avowed disinclination for the warfare, sometimes unknowingly, by self-indulgent habits, which proclaim their unfitness.