Proverbs 28:7

7 He who keepeth instruction is a wise son; But he that is a companion of profligates bringeth his father into shame. We have translated תורה at Pro 28:4 by "law;" here it includes the father's instruction regarding the right way of life. נוצר תּורה, according to the nearest lying syntax, has to be taken as pred. זוללים are such as squander their means and destroy their health, vid., under Pro 23:20. רעה signifies, as frequently from the idea of (cf. Pro 29:3) pasturing, or properly of tending, to take care of, and to have fellowship with. יכלים shall put to shame denotes both that he himself does disgrace to him, and that he brings disgrace to him on the part of others.

Note, 1. Religion is true wisdom, and it makes men wise in every relation. He that conscientiously keeps the law is wise, and he will be particularly a wise son, that is, will act discreetly towards his parents, for the law of God teaches him to do so. 2. Bad company is a great hindrance to religion. Those that are companions of riotous men, that choose such for their companions and delight in their conversation, will certainly be drawn from keeping the law of God and drawn to transgress it, Psa 119:115. 3. Wickedness is not only a reproach to the sinner himself, but to all that are akin to him. He that keeps rakish company, and spends his time and money with them, not only grieves his parents, but shames them; it turns to their disrepute, as if they had not done their duty to him. They are ashamed that a child of theirs should be scandalous and abusive to their neighbours.

28:7 their parents: This proverb applies to both fathers and mothers.