God told Moses that this month would be the beginning of months for Israel — a new start. Each household was to take a lamb: “Your lamb shall be without blemish, a male of the first year.” On the fourteenth day they were to kill it at twilight, put its blood on the two doorposts and the lintel of the house, and eat the meat roasted with unleavened bread and bitter herbs, dressed and ready to leave.
That night the LORD struck the firstborn in the land of Egypt, from Pharaoh's house to the prisoner's. But wherever the blood was applied, God said, “when I see the blood, I will pass over you.” Safety did not depend on how good the family was or how they felt; it depended on the blood of the lamb on the door. There was a great cry in Egypt, and Pharaoh finally told Moses, “Rise, go out.”
God commanded Israel to remember. “So this day shall be to you a memorial.” Every year they would keep the Passover and the Feast of Unleavened Bread and tell their children what the LORD had done. The firstborn of Israel were set apart to the LORD, because He had redeemed them. Six hundred thousand men, plus women and children, went out of Egypt after 430 years — exactly as God had said.
The Passover points straight to Jesus. John the Baptist said, “Behold! The Lamb of God who takes away the sin of the world!” Paul wrote, “For indeed Christ, our Passover, was sacrificed for us.” Like the Passover lamb, not one of His bones was broken. At the Last Supper, during Passover, Jesus took the bread and the cup and showed that His own body and blood would bring a greater deliverance — freedom from sin and death.