Proverbs 4:18 (BSB)

The path of the righteous is like the first gleam of dawn, shining brighter and brighter until midday.

From Proverbs 4. Also in the ESV.

Commentary on Proverbs 4:18

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Proverbs 4:14-19: 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.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Proverbs 4:18: 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...
• Jamieson-Fausset-Brown (Reformed), Commentary Critical and Explanatory on the Whole Bible on Proverbs 4:18: 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.
• Geneva Bible Notes (Reformed), Geneva Bible Study Notes on Proverbs 4:18: But the path of the just [is] as the shining light, that shineth more and more unto the perfect day. (h) Signifying that the godly increase daily in knowledge and perfection, till they come to full persecution, which is when the are joined to their head in the heavens.