21:18 a stubborn and rebellious son. In view here is not the petty disobedience of children, but a long-term pattern of rebellion and deep sin. Although “stubborn and rebellious” is not precisely defined, in v. 20 the son is called “a glutton and a drunkard” (cf. Prov. 23:21). In such cases, even the parents were not to shield their offspring (cf. Zech. 13:2, 3).