Deuteronomy 21:16-18

Common English Bible

¹⁶ On the day when the man decides what will go to each of his children as an inheritance, he isn’t allowed to treat his loved wife’s son as the oldest male rather than his unloved wife’s son, who is the real oldest male. ¹⁷ Instead, he must acknowledge the unloved wife’s son as the oldest male, giving to him two-thirds of everything that he owns, because that son is the earliest produce of his physical power. The oldest male’s rights belong to that son.

Rebellious children

¹⁸ Now if someone has a consistently stubborn and rebellious child, who refuses to listen to their father and mother—even when the parents discipline him, he won’t listen to them—