The fear of the LORD is the beginning of wisdom: and the knowledge of the holy is understanding.
A truth fully taught in the Scriptures and verified in personal experience by countless numbers of holy men and women through the centuries might be condensed thus into a religious axiom: No one can know the true grace of God who has not first known the fear of God….
We have but to read the Scriptures with our eyes open and we can see this truth running like a strong cable from Genesis to Revelation. The presence of the divine always brought fear to the hearts of sinful men….
I do not believe that any lasting good can come from religious activities that do not root in this quality of creature-fear. The animal in us is very strong and altogether self-confident. Until it has been defeated God will not show Himself to the eyes of our faith. Until we have been gripped by that nameless terror which results when an unholy creature is suddenly confronted by that One who is the holiest of all, we are not likely to be much affected by the doctrine of love and grace as it is declared by the New Testament evangel. The love of God affects a carnal heart not at all; or if at all, then adversely, for the knowledge that God loves us may simply confirm us in our self-righteousness. ROR039-040
Lord, may I not see only Your love without the balance of Your awesome holiness. Grip me with holy fear, that I may truly experience Your grace. Amen. 
9:10 Once again we are reminded that the starting point for all true wisdom is in the fear of the Lord. “To know the Deity is what knowledge means” (Moffatt). Because he knows the Holy, a true believer can see more on his knees than others can see on their tiptoes.
The Holy One (plural) may be the plural of majesty, excellence, and comprehensiveness, or it may modify Elohim (understood), a plural word for God.
9:10 The fear of the Lord. Together with 1:7 (see note), this verse stands as the grounding and thematic statement for all of the appeals to wisdom throughout 1:1–9:18.
 Tozer, A. W., & Eggert, R. (2015). Tozer on the almighty god: a 365-day devotional. Chicago, IL: Moody Publishers.
 MacDonald, W. (1995). Believer’s Bible Commentary: Old and New Testaments. (A. Farstad, Ed.) (p. 813). Nashville: Thomas Nelson.
 Crossway Bibles. (2008). The ESV Study Bible (p. 1150). Wheaton, IL: Crossway Bibles.