Proverbs 17:21

21 and the heart of a fool is grief to its possessor. A father rejoices not over an uninstructed son; but a wise son gladdens his mother.

Proverbs 17:21 Meaning and Commentary

Proverbs 17:21

He that begetteth a fool [doth it] to his sorrow
As it proves in the issue; though it was joy to him when a man child was born, and took delight in him while in infancy and childhood, and promised himself much happiness in him when at years of discretion; but, instead of that, he departs from his education principles, despises all parental counsels and advice, and goes into all the extravagance of sin and folly; which is an heartbreaking to his godly and religious parents; for this is to be understood; not of an idiot, but of a wicked son, taking bad courses; and the father of a fool hath no joy;
in his son, but sorrow, and has scarce any joy or pleasure in anything else in all his enjoyments; the trouble he is filled with on his account embitters all he has, that he can take no satisfaction, or have any comfort of life; the concern for his son is uppermost in his thoughts, and hinders him from taking that pleasure which otherwise he might enjoy.

Proverbs 17:21 In-Context

19 A lover of sin rejoices in strifes;
20 and the hard-hearted man comes not in for good. A man of a changeful tongue will fall into mischiefs;
21 and the heart of a fool is grief to its possessor. A father rejoices not over an uninstructed son; but a wise son gladdens his mother.
22 A glad heart promotes health; but the bones of a sorrowful man dry up.
23 The ways of a man who unjustly receives gifts in bosom do not prosper; and an ungodly man perverts the ways of righteousness.

The Brenton translation of the Septuagint is in the public domain.