Faraone's son Osiride wants to keep the Israelites around and continue his clandestine love affair with the Israelite Elcia, so he urges Faraone to break his promise and ends up a casualty of the last plague, the Slaying of the First-Born.
WSJ: Still Searching for the Promised Land | Moses in Egypt | New York City Opera | Opera Review by Heidi Waleson