John Gill Commentary Proverbs 4:15

"Avoid it, pass not by it; Turn from it, and pass on." — Proverbs 4:15 (ASV)

Avoid it
As dangerous and pernicious, as abominable and detestable; or, "flee from it", as the Vulgate Latin version: Jarchi and Gersom interpret it, "make it void"; cause it to cease, destroy it, do all you can to hinder the wicked from accomplishing their designs;

pass not by it ;
do not come near it; keep at a distance from it, that you may not be drawn into it; abstain from all appearance of evil, and everything that may lead to it;

turn from it, and pass away ;
the Targum adds, "from them", from wicked men.

This heap of words is used to show the danger of bad company; to dissuade from the least approach to it; and to express the vehement desire of the wise man to preserve his son, and all well inclined persons, from it.