Commentaries
12:14. When men use their tongues aright, to teach and comfort others, they enjoy acceptance through Christ Jesus; and the testimony of their conscience, that they in some measure answer the end of their being. 15. A fool, in the sense of Scripture, means a wicked man, one who acts contrary to the wisdom that is from above. His rule is, to do what is right in his own eyes.
15. The way … eyes—The fool is self-conceited (compare Pr 12:1; 1:32; 10:17; Jas 3:17).