Proverbs 4:18

But the path of the just - The path of the wicked is gloomy, dark, and dangerous; that of the righteous is open, luminous, and instructive. This verse contains a fine metaphor; it refers to the sun rising above the horizon, and the increasing twilight, till his beams shine full upon the earth. The original, הולך ואור עד נכון היום holech vaor ad nechon haiyom, may be translated, "going and illuminating unto the prepared day." This seems plainly to refer to the progress of the rising sun while below the horizon; and the gradual increase of the light occasioned by the reflection of his rays by means of the atmosphere, till at last he is completely elevated above the horizon, and then the prepared day has fully taken place, the sun having risen at the determined time. So, the truly wise man is but in his twilight here below; but he is in a state of glorious preparation for the realms of everlasting light; till at last, emerging from darkness and the shadows of death, he is ushered into the full blaze of endless felicity. Yet previously to his enjoyment of this glory, which is prepared for him, he is going - walking in the commandments of his God blameless; and illuminating - reflecting the light of the salvation which he has received on all those who form the circle of his acquaintance.

Shining ... shineth - The two Hebrew words are different; the first having the sense of bright or clear. The beauty of a cloudless sunshine growing on, shining as it goes, to the full and perfect day, is chosen as the fittest figure of the ever increasing brightness of the good man's life. Compare the marginal reference.

4:18 But - Just men daily grow in knowledge, and grace, and consolation, 'till all be perfected and swallowed up in glory.