Solomon
Proverbs 2:6ESV·traditional attribution

For the LORD gives wisdom; from his mouth come knowledge and understanding;

Matthew Henry Presbyterian @wholebiblehenry

Job had asked, long before this, Where shall wisdom be found? Whence cometh wisdom? (Job 28:12, Job 28:20) and he had given this general answer (v. 23), God knoweth the place of it; but Solomon here goes further, and tells us both where we may find it and how we may get it. We are here told, I. What means we must use that we may obtain wisdom. 1.

Commenting on Proverbs 2:1-9

John Gill Reformed Baptist @doctorgill

For the Lord giveth wisdom,.... Natural wisdom in all its branches, with all its improvements, and in its utmost latitude and perfection; and spiritual wisdom, which lies in the knowledge of a man's self, his own folly, impurity, impotence, and misery; being wise unto salvation; in the knowledge of Christ, as the only way of salvation, and of God in Christ; in partaking of the...

Jamieson-Fausset-Brown Reformed @jfbcommentary

For--God is ready (Jam 1:5; Jam 4:8). out of his mouth--by revelation from Him.