Rousas John Rushdoony, The Institutes of Biblical Law: A Chalcedon Study, Nutley, N.J.: Craig Press, 1973, p.182
"A fundamental aspect of the support due a child from his parents is education in the broadest sense of the word. This involves, first of all, chastisement. According to Proverbs 13:24, "He that spareth his rod hateth his son: but he that loveth him chasteneth him betimes." Again, "Chasten thy son while there is hope, and let not thy soul spare for his crying" (Prov. 19:18); parents then were as inclined to be tenderhearted as now, but the necessity for chastening cannot be set aside by a foolish pity. Chastisement can be a lifesaver to the child: "Withhold not correction from the child: for if thou beatest him with the rod, he shall not die. Thou shalt beat him with the rod, and shalt deliver his soul from hell” (Prov. 23:13-14). Chastening is necessary, as Kidner points out, because, Proverbs holds,"