Deuteronomy 17:11-13

11You shall act in accordance with the law which they teach you and the judgment which they tell you. You shall not turn aside from their verdict, to the right or to the left.

12The man who acts presumptuously and insolently by not listening to the priest who stands there to serve the Lord your God, nor to the judge, that man shall die; so you shall remove the evil from Israel.

13Then all the people will hear and be afraid, and will not act presumptuously again.