Reading and meditating on Psalm 111, which contains verse 10a:
The fear of the LORD is the beginning of wisdom
may help with learning more about Proverbs 9:10, which says the same thing, along with Job 28:28. Without acknowledging, praising Him for and obeying the things written there, we will not acquire wisdom.
The fear of the Lord, including reverencing him for his spectacular works and righteous character, is the beginning–being both the foundation, and the principal or chief–of wisdom (Henry Smith–paraphrased).
Many are ignorant of what their Creator has done, and hence they are foolish in heart, and silent as to the praises of God: this evil can only be removed by a remembrance of God’s works, and a diligent study of them; to this, therefore, the psalm is meant to arouse us.
Matthew Henry comments on this verse in Psalms:
The fear of the Lord is the beginning of wisdom. It is not only reasonable that we should fear God, because his name is reverend and his nature is holy, but it is advantageous to us. It is wisdom; it will direct us to speak and act as becomes us, in a consistency with ourselves, and for our own benefit. It is the head of wisdom, that is (as we read it), it is the beginning of wisdom. Men can never begin to be wise till they begin to fear God; all true wisdom takes its rise from true religion, and has its foundation in it. Or, as some understand it, it is the chief wisdom, and the most excellent, the first in dignity. It is the principal wisdom, and the principal of wisdom, to worship God and give honour to him as our Father and Master. Those manage well who always act under the government of his holy fear.
Keil and Delitzsch:
The fear of Jahve, this holy and terrible God, is the beginning of wisdom – the motto of the Chokma in Job (Job 28:28) and Proverbs (Pro 1:7; Pro 9:10), the Books of the Chokma. Psalm 111:10 goes on in this Proverbs-like strain: the fear of God, which manifests itself in obedience, is to those who practise them (the divine precepts, פקודים) שֶׂכֶל טֹּוב (Pro 13:15; Pro 3:4, cf. 2 Chr 30:22), a fine sagacity, praiseworthy discernment – such a (dutiful) one partakes of everlasting praise.
After having heard it all, this is the conclusion: Fear God, and keep his commands, because this applies to everyone.
The Lord gives wisdom.
From his mouth come knowledge and understanding.