A servant who deals wisely will rule over a son who acts shamefully and will share the inheritance as one of the brothers.
Note, 1. True merit does not go by dignity. All agree that the son in the family is more worthy than the servant (Joh 8:35), and yet sometimes it so happens that the servant is wise, and a blessing and credit to the family, when the son is a fool, and a burden and shame to the family.
A wise servant shall have rule over a son that causeth shame,.... That does wicked and shameful actions: that is slothful, and will not attend to instruction or business; that is prodigal, wasteful, and luxurious, and causes shame to his parents, who blush at his conduct.
(Compare Pro 14:35). causeth shame-- (Pro 10:5). shall . . . inheritance--that is, share a brother's part (compare Num 27:4, Num 27:7).