Exodus 12:1-6 CJB

1 ADONAI spoke to Moshe and Aharon in the land of Egypt; he said,
2 "You are to begin your calendar with this month; it will be the first month of the year for you.
3 Speak to all the assembly of Isra'el and say, 'On the tenth day of this month, each man is to take a lamb or kid for his family, one per household -
4 except that if the household is too small for a whole lamb or kid, then he and his next-door neighbor should share one, dividing it in proportion to the number of people eating it.
5 Your animal must be without defect, a male in its first year, and you may choose it from either the sheep or the goats.
6 "'You are to keep it until the fourteenth day of the month, and then the entire assembly of the community of Isra'el will slaughter it at dusk.