Joshua 1:18
Whoever rebels against your commandment and disobeys your words, whatever you command him, shall be put to death; only be strong and courageous — the penalty for disobedience is death, establishing the seriousness of covenantal obligation and the authority vested in Joshua. The willingness of the people to execute this penalty shows their commitment to the mission and foreshadows the tragedy of Achan, whose violation will result in death.