Symbols and Similitudes: Passover, of the Sparing of the Firstborn, and of the Atonement Made by Christ
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Exodus 12:3–28
Tell the whole congregation of Israel that on the tenth day of this month each man must select a lamb for his family, one per household. / If the household is too small for a whole lamb, they are to share with the nearest neighbor based on the number of people, and apportion the lamb accordingly. / Your lamb must be an unblemished year-old male, and you may take it from the sheep or the goats.
1 Corinthians 5:7
Get rid of the old leaven, that you may be a new unleavened batch, as you really are. For Christ, our Passover lamb, has been sacrificed.