The heart of him that hath understanding seeketh
knowledge,
&c.] He that has in his heart an understanding of divine and
spiritual things, of the Gospel and of the truths of it, will
seek earnestly and diligently in the use of proper means after
more knowledge; as he will desire to know more of Christ, his
person, offices, and grace, he will follow on to know him, and
not be content with the present degree of knowledge he has
attained unto; he will hear and read the word, and pray and
meditate, in order to come to a more perfect knowledge of the son
of God, and of those things which relate to his spiritual peace
and eternal welfare; but the mouth of fools feedeth on
foolishness;
on foolish talking and jesting; on foolish and unlearned
questions; on foolish and false doctrines; on foolish and hurtful
lusts; on wind and ashes, a deceived heart having turned them
aside: they take pleasure and satisfaction in those things; feed
their fancy with them and feast upon them, which shows what fools
they are; and such all unregenerate men be.