John Gills Exposition of the Bible Commentary - Proverbs 14:7
Go from the presence of a foolish man ,.... A wicked one; avoid him, shun his company, depart from him, have no fellowship with him, it, being dangerous, infectious, and hurtful; when thou perceivest not in him the lips of knowledge ; when it is observed that his lips pour out foolishness, what is corrupt and unsavoury, unchaste and filthy; what does not minister grace to the hearers, nor is for the use of edifying, nor any ways improving in useful knowledge, but all the reverse: the... read more
Matthew Henry's Complete Commentary - Proverbs 14:7
See here, 1. How we may discern a fool and discover him, a wicked man, for he is a foolish man. If we perceive not in him the lips of knowledge, if we find there is no relish or savour of piety in his discourse, that his communication is all corrupt and corrupting, and nothing in it good and to the use of edifying, we may conclude the treasure is bad. 2. How we must decline such a one and depart from him: Go from his presence, for thou perceivest there is no good to be gotten by his company,... read more