Deuteronomy 21:16-18

Revised Standard Version Catholic Edition

¹⁶ then on the day when he assigns his possessions as an inheritance to his sons, he may not treat the son of the loved as the first-born in preference to the son of the disliked, who is the first-born, ¹⁷ but he shall acknowledge the first-born, the son of the disliked, by giving him a double portion of all that he has, for he is the first issue of his strength; the right of the first-born is his.

A Rebellious Son

¹⁸ “If a man has a stubborn and rebellious son, who will not obey the voice of his father or the voice of his mother, and, though they chastise him, will not give heed to them,