He that spareth his rod hateth his son: but he that loveth him chasteneth him betimes. He that spareth his rod hateth his son - That is, if he hated him, he could not do him a greater disservice than not to correct him when his obstinacy or disobedience requires it. We have met with this subject already, and it is a favourite with Solomon. See Psalms 34:10 (note) and Psalms 37:3 (note).
The Rev. Mr. Holden makes some sensible observations on this passage: "By the neglect of early correction the desires (passions) obtain ascendancy; the temper becomes irascible, peevish, querulous. Pride is nourished, humility destroyed, and by the habit of indulgence the mind is incapacitated to bear with firmness and equanimity the cares and sorrows, the checks and disappointments, which flesh is heir to."