Among all the faiths which mankind has cherished and by which it has been helped in life's adventure, none have been more universally and more passionately held than those associated with religion. In the daring experiment of living, men naturally have sought by faith interpretation not only of life's details but of life itself--its origin, its meaning, and its destiny. Australian bushmen, unable to count above four on their fingers, have been heard discussing in their huts at night whence they came, whither they go, and who the gods are anyway. And when one turns to modern manhood in its finest exhibitions of intelligence and character, he sees that Professor Ladd, of Yale, speaks truly: "The call of the world of men today, which is most insistent and most intense, if not most loud and clamorous, is the call for a rehabilitation of religious faith." For it does make a prodigious difference to the spirit of our adventure in this world, whether we think that God is good or on the other hand see the universe as Carlyle's terrific figure pictures it--"one huge, dead, immeasurable Steam-engine, rolling on, in its dead indifference, to grind me limb from limb." It does make a difference of quite incalculable magnitude whether we think that our minds and characters are an evanescent product of finely wrought matter which alone is real and permanent, or on the contrary with John believe that "Now are we children of God and it is not yet made manifest what we shall be" (I John 3:2). How great a difference in life's adventure religious faith does make is better set forth by concrete example than by abstract argument. On the one side, how radiant the spirit of the venture as the New Testament depicts it! The stern, appealing love of God behind life, his good purpose through it, his victory ahead of it, and man a fellow worker, called into an unfinished world to bear a hand with God in its completion--here is a game that indeed is worth the candle. On the other side is Bertrand Russell's candid disclosure of the consequences of his own scepticism: "Brief and powerless is man's life; on him and all his race the slow sure doom falls pitiless and dark. Blind to good and evil, reckless of destruction, omnipotent matter rolls on its relentless way; for Man condemned today to lose his dearest, tomorrow himself to pass through the gate of darkness, it remains only to cherish, ere yet the blow falls, the lofty thoughts that ennoble his little day--proudly defiant of the irresistible forces that tolerate for a moment his knowledge and his condemnation, to sustain alone, a weary but unyielding Atlas, the world that his own ideals have fashioned despite the trampling march of unconscious power." Man's life, interpreted and motived by religious faith, is glorious, but shorn of faith's interpretations life loses its highest meaning and its noblest hopes. Let us make this statement's truth convincing in detail.