Perhaps Adrian Peterson's critics need to read the following:
Proverbs 23:13-14 says, "Withhold not correction from the child: for if though beatest him with the rod, he shall not die. Thou shalt beat him with the rod, and shalt deliver his soul from hell."
Proverbs 13:24: "He that spareth his rod hateth his son: but he that loveth him chaseneth him quickly."
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Proverbs 19:18: "Chasten thy son while there is hope, and let not thy soul spare for his crying."
I would imagine that was what Mr. Peterson had on his mind.