Exodus 12
Exodus 12 is the founding chapter of Passover — the liturgical heart of Israel's identity and the most detailed ritual instruction in Genesis through Exodus. God institutes an entirely new calendar: this month is the beginning of months, the first month of the year. Each household is to take a lamb without blemish on the tenth day, keep it until the fourteenth, slaughter it at twilight, and apply its blood to the doorposts and lintel. They are to eat the lamb roasted, with unleavened bread and bitter herbs, dressed and ready to travel. When the destroyer passes through Egypt at midnight, every household without the blood on the door loses its firstborn. Israel is covered; Egypt is not. The cry that rises through Egypt is exactly what Moses announced. Pharaoh summons Moses in the night and drives Israel out. Around six hundred thousand men, plus families, leave Egypt after four hundred and thirty years to the day. Paul's reading in 1 Corinthians 5:7 is unambiguous: Christ our Passover lamb has been sacrificed. Every element of this chapter finds its fulfillment in the cross — the unblemished lamb, the blood on the door, the night of judgment passed over.
Exodus 12:1
The Lord said to Moses and Aaron in Egypt. The setting note is significant: this divine instruction comes in Egypt, while Israel is still enslaved, before a single plague has been reversed, before the Exodus has begun. The Passover is instituted in the condition it is designed to remember — in bondage, in the darkness, waiting for deliverance. Hebrews 11:28 says Moses kept the Passover by faith — the keeping was an act of trust before the evidence was complete. The address to both Moses and Aaron places the Passover under the authority of both the prophetic voice (Moses) and the priestly office (Aaron), establishing from the beginning that the festival belongs to the whole covenant community and will be administered through its designated leaders.
Exodus 12:2
This month is to be for you the first month, the first month of your year. The calendar is reset. God is not merely giving Israel a festival; He is restructuring their sense of time around the Exodus. The month of the Passover — Nisan, in the spring — becomes the first month of Israel's religious year, even though the civil year had previously begun in autumn. Time itself is reorganized around redemption. Galatians 4:4–5 says when the fullness of time had come, God sent his Son — the incarnation is similarly described as a reorganization of time around redemption. The Exodus becomes the orienting event of Israel's calendar because it is the originating act of Israel's existence as a people. Every year that follows will be counted from this moment.
Exodus 12:3
Tell the whole community of Israel that on the tenth day of this month each man is to take a lamb for his family, one for each household. The Passover is given to the whole community — not just the priests, not just the leaders, but every family. The democratization of the festival is significant: each household participates directly in the sacrifice, not through a mediating priest. The selection on the tenth day and slaughter on the fourteenth creates a four-day period during which the lamb is part of the household — observed, perhaps named, certainly present. John 12:1 records Jesus entering Jerusalem six days before Passover, presenting Himself to the city as the lamb who will be slaughtered at Passover. The four-day period of the Passover lamb and the entry of Jesus into Jerusalem are structurally parallel.