King David established 11 ethical and moral requirements on which to base the 613.
Isaiah came and established them on six: "Walk with righteousness, speak with fairness, spurn extortionate profit, avoid suspicions of taking a bribe, seal the ears from hearing of bloodshed, and shut the eyes from seeing evil."
Michah established them on three: do justice, love kindness, and walk humbly with your God.
Habakkuk established them on one: "The righteous person shall live through his faith".
Art: North-West Passage by John Everett Millais