Revealed truth is like the light. It cannot be said to require illumination from without in order to let us know what it means; it really displays itself. You do not need a taper or a torch from man to find out the light of day. The sun, as it needs none, entirely eclipses all such artificial helps; it shines for itself and rules the day. So it is that wherever you find a man capable of seeing, the truth commends itself. He has what the Evangelist Luke calls "an honest... heart," and what other scriptures speak of as "a single eye." Wherever the truth is really brought to bear upon a man who is open to receive it as the precious light of God in Christ, they answer mutually to each other. The heart is prepared for it and desires it; and when the truth is heard, it bows, receives, and enjoys it. When the heart, on the contrary, is occupied with itself or the world, there is no truth that can possibly bend it. The will of man is at work, and where is there a more unvarying enemy of God? Therefore it is said (John 3) that no man can see or enter the kingdom of God without being born again-born of water and of the Spirit. That is, there must be a direct positive work of the Holy Ghost dealing with the soul, judging it and giving a new nature which has as decided an affinity for the things of God as the old life has for the things of the world. The Spirit acts upon the new creature, and gives intelligence, and the truth is, we may say, its natural sustenance.