But the path of the righteous is like the light of dawn, which shines brighter and brighter until full day.
Some make David's instructions to Solomon, which began Pro 4:4, to continue to the end of the chapter; nay, some continue them to the end of the ninth chapter; but it is more probable that Solomon begins here again, if not sooner. In these verses, having exhorted us to walk in the paths of wisdom, he cautions us against the path of the wicked. 1.
Commenting on Proverbs 4:14-19
But the path of the just is as the shining light,.... The "just" man is one that is made righteous through the righteousness of Christ imputed to him; and who is created anew in Christ, in righteousness and true holiness; and, under the influence of divine grace, lives soberly, righteously, and godly: the "path" he is directed to walk in, and does, is Christ himself...
As shining light increases from twilight to noonday splendor, so the course of the just increases in purity, but that of the wicked is as thickest darkness, in which one knows not on what he stumbles.