Here is, 1. A good man proved to be a wise man by this, that he governs
his tongue well; he that does so the same is a perfect man, Jam. iii.
2. It is part of the character of a righteous man that being convinced
of the account he must give of his words, and of the good and bad
influence of them upon others, he makes conscience of speaking truly
(it is his heart that answers, that is, he speaks as he thinks, and
dares not do otherwise, he speaks the truth in his heart, Ps. xv. 2),
and of speaking pertinently and profitably, and therefore he studies to
answer, that his speech may be with grace, Neh. ii. 4; v. 7. 2. A
wicked man is proved to be a fool by this, that he never heeds what he
says, but his mouth pours out evil things, to the dishonour of God and
religion, his own reproach, and the hurt of others. Doubtless that is
an evil heart which thus overflows with evil.