Exodus 12
4 And if the lamb is more than enough for the family, let that family and its nearest neighbour have a lamb between them, taking into account the number of persons and how much food is needed for every man.
5 Ref Let your lamb be without a mark, a male in its first year: you may take it from among the sheep or the goats:
6 Ref Keep it till the fourteenth day of the same month, when everyone who is of the children of Israel is to put it to death between sundown and dark.
7 Ref Then take some of the blood and put it on the two sides of the door and over the door of the house where the meal is to be taken.
8 Ref And let your food that night be the flesh of the lamb, cooked with fire in the oven, together with unleavened bread and bitter-tasting plants.