Matthew Henry's Complete Bible Commentary

Verse 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, whoever gives it to him, and will mend what is amiss when it is shown him, gains respect as wise and candid; he avoids that which would be a disgrace to him and is in a fair way to make himself considerable. MHBCC 642.21