Solomon
Proverbs 8:14ESV·traditional attribution

I have counsel and sound wisdom; I have insight; I have strength.

Matthew Henry Presbyterian @wholebiblehenry

Wisdom here is Christ, in whom are hidden all the treasures of wisdom and knowledge; it is Christ in the word and Christ in the heart, not only Christ revealed to us, but Christ revealed in us. It is the word of God, the whole compass of divine revelation; it is God the Word, in whom all divine revelation centres; it is the soul formed...

Commenting on Proverbs 8:12-21

John Gill Reformed Baptist @doctorgill

Counsel is mine, and sound wisdom,.... The words and sentiments in this and the following clause are the same with those in Job 12:13; and scent to be taken from thence, which are spoken of God; and being here applied to Wisdom, show that a divine Person is meant; and are very applicable to him who the Wisdom of God, and the power of God...

Jamieson-Fausset-Brown Reformed @jfbcommentary

It also gives the elements of good character in counsel. sound wisdom-- (Pro 2:7). I . . . strength--or, "As for me, understanding is strength to me," the source of power (Ecc 9:16); good judgment gives more efficiency to actions;