See here, 1. What it is that keeps a fool from being wise: His way is right in his own eyes; he thinks he is in the right in every thing he does, and therefore asks no advice, because he does not apprehend he needs it; he is confident he knows the way, and cannot miss it, and therefore never enquires the way. The rule he goes by is to do that which is right in his own eyes, to walk in the way of his heart. Quicquid libet, licet - He makes his will his law. He is a fool that is governed by his eye, and not by his conscience. 2. What it is that keeps a wise man from being a fool; he is willing to be advised, desires to have counsel given him, and hearkens to counsel, being diffident of his own judgment and having a value for the direction of those that are wise and good. He is wise (it is a sign he is so, and he is likely to continue so) whose ear is always open to good advice.

The way of a fool is right in his own eyes,.... Whether it be the way of open profaneness, or self-righteousness, it appears to him to be the right way; it seems to him a very plain one, and he finds it pleasant; and, trusting to carnal sense, corrupt reason, and a false judgment, and having a high opinion of himself and his own knowledge, never asks after the right way, nor takes the advice of others;

but he that hearkeneth unto counsel is wise; that asks advice and takes it of such who are men of age and experience, men of longer standing, and are wiser than himself; who consults the word of God about the right way of walk, worship, and salvation, and makes the testimonies of God the men of his counsel, which are able to make him wise unto salvation; who hearkens to the counsel of Gospel ministers, and obeys it; and especially to Jesus Christ the wonderful Counsellor, and to the advice he gives, Rev 3:18; and who not only hears his words, but does them; such an one is a wise man, Mat 7:24.

The way . . . eyes--The fool is self-conceited (compare Pro 12:1; Pro 1:32; Pro 10:17; Jam 3:17).