'Rules' in the Bible

Then Samuel told the people the custom of the kingship, and he wrote [the rules] down on a scroll and laid [it] before Yahweh. Then Samuel sent all the people away, each to his own house.

If you will fear Yahweh, and serve him, and listen to his voice, and not be rebellious against {what Yahweh says}, and both you and the king who rules over you will [follow] after Yahweh your God, [all will be well].