Proverbs 9:10 (BSB)

The fear of the LORD is the beginning of wisdom, and knowledge of the Holy One is understanding.

From Proverbs 9. Also in the ESV.

Commentary on Proverbs 9:10

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Proverbs 9:1-12: Wisdom is here introduced as a magnificent and munificent queen, very great and very generous; that Word of God is this Wisdom in which God makes known his goodwill towards men; God the Word is this Wisdom, to whom the Father has committed all judgment.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Proverbs 9:10: The fear of the Lord is the beginning of wisdom,.... This shows who the wise men are, and in what true wisdom lies; no man is wise till he fears the Lord, and he that does so is a wise man, at least then he begins to be one; this is the principal part of wisdom, Pro 1:7; and is at the first of it...
• Jamieson-Fausset-Brown (Reformed), Commentary Critical and Explanatory on the Whole Bible on Proverbs 9:10: (Compare Pro 1:7). of the holy--literally, "holies," persons or things, or both. This knowledge gives right perception.
• Geneva Bible Notes (Reformed), Geneva Bible Study Notes on Proverbs 9:10: The fear of the LORD [is] the beginning of wisdom: and the knowledge of the Holy One [is] understanding. (i) He shows what true understanding is, to know the will of God in his word which is meant by holy things.