1706–1708 · Matthew Henry, Commentary on Deuteronomy 21.18-23
If he carry himself proudly and insolently towards his parents, contemn their authority, slight their reproofs and admonitions, disobey the express commands they give him for his own good, hate to be reformed by the correction they give him, shame their family, grieve their hearts, waste their substance, and threaten to ruin their estate by riotous living—this is a stubborn and rebellious son. He is particularly supposed (v. 20) to be a glutton or a drunkard. This intimates either, (1.) That these were sins which his parents did in a particular manner warn him against, and therefore that in these instances there was a plain evidence that he did not obey their voice. Lemuel had this charge from his mother, Prov. xxxi. 4. Note, In the education of children, great care should be taken to suppress all inclinations to drunkenness, and to keep them out of the way of temptations to it; in order hereunto they should be possessed betimes with a dread and detestation of that beastly sin, and taught betimes to deny themselves. Or, (2.) That his being a glutton and a drunkard was the cause of his insolence and obstinacy towards his parents. Note, There is nothing that draws men into all manner of wickedness, and hardens them in it, more certainly and fatally than drunkenness does. When men take to drink they forget the law, they forget all law (Prov. xxxi. 5), even that fundamental law of honouring parents.