Solomon
Proverbs 19:27ESV·traditional attribution

Cease to hear instruction, my son, and you will stray from the words of knowledge.

Matthew Henry Presbyterian @wholebiblehenry

This is a good caution to those that have had a good education to take heed of hearkening to those who, under pretence of instructing them, draw them off from those good principles under the influence of which they were trained up. Observe, 1. There is that which seems designed for instruction, but really tends to the destruction of young men.

John Gill Reformed Baptist @doctorgill

Cease, my son, to hear the instruction,.... The counsel of bad men, or the doctrine of false teachers. The words are spoken either by Solomon to his son; or by Wisdom, that is, Christ, to everyone of his children, to beware of false prophets, and take heed what they hear; see Mat 7:15; such as the doctrines of the church of Rome; concerning the Scriptures...

Keil & Delitzsch Lutheran @keilanddelitzsch

Pro 19:27 27 Cease, my son, to hear instruction, To depart from the words of knowledge. Oetinger correctly: cease from hearing instruction if thou wilt make no other use of it than to depart, etc., i.e., cease to learn wisdom and afterwards to misuse it.