The final plague in Egypt was so significant that Moses wrote chapter 11 of Exodus to explain what it would entail. It is the only chapter during the plague narrative in which no plague actually takes place. Moses said that the first-born of every Egyptian family would perish and when it was over, the Egyptians would give silver and gold to the Israelites. Would the Egyptians believe him? Would the Israelites? There was only one way to prove it.