Solomon
Proverbs 2:7ESV·traditional attribution

he stores up sound wisdom for the upright; he is a shield to those who walk in integrity,

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

He layeth up sound wisdom for the righteous,.... In order to give it to them that seek for it; which is another encouragement to search after it. By "sound wisdom" may be meant, not the law, as Kimchi and Ben Melech; so called, because it endures for ever, when all beings are defective and come to nothing; but the Gospel, which is sound doctrine, pure...

Jamieson-Fausset-Brown Reformed @jfbcommentary

sound wisdom--literally, "substance," opposed to what is fictitious. According to the context, this may be assistance, as here corresponding with buckler--or safety, or wisdom, which procures it (compare Pro 3:21; Pro 8:14; Pro 18:1; Job 6:13; Job 12:13). layeth up--provides, ever ready.