It is the oldest question in the universe, and the greatest. It has been asked a million million times, and it would not have been altogether strange had we never discovered an answer. In Mr. H. G. Wells' story of the men who invaded the moon, he describes a conversation between the travelers and the Grand Lunar. The Grand Lunar asks them many questions about the earth which they are unable to answer. 'What?' he exclaims, 'knowing so little of _the earth_, do you attempt to explore _the moon_?' We men know little enough of _ourselves_: it would have been no cause for astonishment had we been unable to define _God_. Men lost themselves for ages in guess-work. They looked round about them; they saw how grandly a million worlds revolve, and they noticed how exquisitely the mighty forces of the earth are governed. Then they made their guess. '_God is Power_,' they said, '_God is Power!_' Then, peering a little more deeply into the heart of things, they saw that all these terrific forces are not only controlled, but harnessed to high ends. All things are working--they are working together--they are working together for good! And thereupon men made their second guess. '_God is Wisdom_,' they said, '_God is Wisdom!_' Then, observing things still more closely, men began to see great ethical principles underlying the laws of the universe. In the long run, evil suffers, and, in the long run, right is rewarded. '_God is Justice_,' they said, '_God is Justice!_' And so men made their guesses, and, as they guessed, they built. They erected temples, now to the God of Power, then to the God of Wisdom, and again to the God of Justice. They had yet to learn that they were worshiping the part and not the whole; they were worshiping the rays and not the Light Itself. Then Jesus came, and men understood. By His words and His deeds, by His life and His death, He revealed the whole truth. God is Power and Wisdom and Justice--but He is more. In a European churchyard there stands a monument erected by a poet to his wife. It bears the inscription: She was----, But words are wanting to say what! Think what a wife should be And she was that! _God is----!_ _God is--what?_ He is----, But words are wanting to say what! Think what a God should be And He is that! Jesus filled in the age-long blank; He filled it in, not in cold language, but in warm life. Many attempts have been made to translate His definition from the terms of life into the terms of language. Only once have those attempts been even approximately successful. The words on the perforated bookmarker represent the best answer that human speech has ever given to the question. _God is----_ _God is--what?_ _GOD--IS--LOVE!_ V