Matthew Henry's Concise Commentary

12:14-15 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.