"But to possess this knowledge you must be holy. Sin darkens the understanding, and hinders the perception of truth. A grain of sand in the eye will prevent you seeing the most beautiful landscape in the universe, or the dearest friends you have. It is with the heart that men see divine things, and an atom of sin will darken the brightest vision that can come before you. With a pure heart you can not only see God's truth, but God Himself. Oh, God wants to reveal Himself to you. Will you let Him? But if He is to do so, you must have a clean heart. "It is God's will that you should be holy, because He wants you to be men and women of courage. "Courage is the most valuable quality in this War. There are few gifts of greater importance. Only think what it has enabled the Prophets, the Apostles, and the Salvation leaders of modern times to accomplish! How it covered Moses, and Joshua, and David, and Daniel, and Paul, and a crowd of others with glory, and enabled them to conquer men, and devils, and difficulties of all kinds. I shall have something more to say about this before I have done. "Courage and Holiness are linked closely together. You cannot have one without the other. Sin is the very essence of weakness. A little selfishness, a little insincerity, a little of anything that is evil means condemnation, and loss of courage, which means cowardice and failure. "'The wicked flee when no man pursueth.' Double-minded people are uncertain, fickle, unreliable in all their ways. 'The righteous are bold as a lion.' Remember Shadrach, Meshach, Abednego. "God wants you to be holy, in order that He may do mighty works through your instrumentality. "I verily believe that His arm is held back from working wonders through the agency of many Officers, because He sees that such success would be their ruin. The spirit of Nebuchadnezzar is in them. He cannot build Babylon, or London, or New York, or anything else by their instrumentality, because He sees it would create the spirit of vainglory and boasting, or of ambition; make them dissatisfied with their position; or otherwise curse them and those about them. Look at Saul. What a lesson his history has in it for us all. 'When thou wast little in thine own sight wast thou not made the head of the Tribes of Israel? and the Lord anointed thee king over Israel.' "Now, I may be asked whether some Officers do not fail to reach the higher ranges of the experience I have here described, and the reasons for this.