Solomon
Proverbs 9:9ESV·traditional attribution

Give instruction to a wise man, and he will be still wiser; teach a righteous man, and he will increase in learning.

Matthew Henry Presbyterian @wholebiblehenry

Wisdom is here introduced as a magnificent and munificent queen, very great and very generous; that Word of God is this Wisdom in which God makes known his goodwill towards men; God the Word is this Wisdom, to whom the Father has committed all judgment.

Commenting on Proverbs 9:1-12

John Gill Reformed Baptist @doctorgill

Give instruction to a wise man,.... In the Hebrew text it is only "give to a wise man"; give him reproof, correction, chastisement, doctrine, or instruction, be it what it will, he will be the better for it. The Septuagint, Vulgate Latin, Syriac, and Arabic versions, render it, "give occasion"; to him of showing his wisdom and of improving in it: and he will be...

Jamieson-Fausset-Brown Reformed @jfbcommentary

The more a wise man learns, the more he loves wisdom.