Exodus 21:15

He that smiteth his father, &c. So sacred and inviolable is that reverence which children owe to their parents, that, by the law of God, it was death not only to strike them, but even to curse or outrageously revile them, Exodus 21:17, and Matthew 15:4. The reason of this law is, that such crimes are a sign of most audacious wickedness. It appears, however, from Deuteronomy 21:18, that children were not to be put to death for the first offence of this kind, but if, after repeated admonitions from their parents, they still persisted in their undutiful carriage, without hope of reformation, then, upon the accusation of their parents, they were to be put to death.