John Gills Exposition of the Bible Commentary - Proverbs 13:18
Poverty and shame shall be to him that refuseth instruction ,.... Of parents, masters, and ministers of the word; the instruction of wisdom, the instruction of the Gospel, in things relating to their present spiritual peace, and to their eternal welfare: such generally come to poverty and disgrace in this life, and to everlasting shame and contempt in another; see Proverbs 5:11 ; but he that regardeth reproof ; the reproof of the word, and of the ministers of it, and of all good men,... read more
Matthew Henry's Complete Commentary - Proverbs 13:18
Note, 1. He that is so proud that he scorns to be taught will certainly be abased. He that refuses the good instruction offered him, as if it were a reflection upon his honour and an abridgment of his liberty, poverty and shame shall be to him: he will become a beggar and live and die in disgrace; every one will despise him as foolish, and stubborn, and ungovernable. 2. He that is so humble that he takes it well to be told of his faults shall certainly be exalted: He that regards a reproof,... read more