The Importance of Calendar Issues in Exodus 23

Exodus 11 and 12 focus on the final plague against Egypt, the death of the firstborn, and the institution of the Passover (Hebrew: pesaḥ / pesach). Like the other plagues, the death of the firstborn is an assault on not only the pharaoh and his people, but on Maat, the principle of cosmic order to be maintained by the gods of Egypt. This episode touches on that polemic, but also on the meaning and typology of Passover and the “Destroyer” of the final plague.