Moses
Deuteronomy 17:16BSB·traditional attribution

But the king must not acquire many horses for himself or send the people back to Egypt to acquire more horses, for the LORD has said, ‘You are never to go back that way again.’

John Calvin Reformed @genevareformer

16 But he shall not multiply horses. The royal power is here circumscribed within certain limits, lest it should exalt itself too much in reliance on the glory of its dignity, Addition in Fr, “Et face du cheval eschappe;” and act like a runaway horse For we know how insatiable are the desires of kings, inasmuch as they imagine that all things are lawful to them.

Matthew Henry Presbyterian @wholebiblehenry

After the laws which concerned subjects fitly followed the laws which concern kings; for those that rule others must themselves remember that they are under command. Here are laws given, I. To the electors of the empire, what rules they must go by in making their choice, Deu 17:14, Deu 17:15. 1.

Commenting on Deuteronomy 17:14-20

John Gill Reformed Baptist @doctorgill

But he shall not multiply horses to himself,.... That he might not put his trust and confidence in outward things, as some are apt to trust in horses and chariots; and that he might not tyrannise over and distress his subjects by keeping a number of horses and chariots as a standing army, and chiefly for a reason that follows; he was to have no...