The fifth commandment — "Honor your father and your mother" — comes with a promise attached: "so that your days be prolonged upon the earth" (Exodus 20:12). Most commandments in the Torah stand alone, their rewards hidden or deferred to the world to come. But this one spells out its reward directly, in the same breath as the command itself. The Mekhilta finds in this structure a surprising legal consequence.
The beth-din — the Jewish court — is not empowered to enforce this commandment. The rabbis establish a principle: any mitzvah whose reward is stated alongside it falls outside the court's jurisdiction. The earthly beth-din does not compel a person to honor his parents.
The reasoning is striking. When the Torah attaches a specific reward to a commandment, it signals that God Himself will handle the enforcement. The promise of long life is a divine guarantee, not a judicial matter. Courts enforce obligations where the Torah provides penalties for violation — lashes, fines, restitution. But where the Torah offers reward instead of punishment, it places the matter between the individual and God.
This does not diminish the obligation. Honoring one's parents remains one of the Ten Commandments, etched in stone at Sinai. But the mechanism of accountability differs. A person who neglects his parents will not be summoned before a judge. He will answer to a higher authority. The Mekhilta teaches that some commandments are too intimate, too bound up with the human heart, for any earthly court to adjudicate.