Exodus 12:5-7

Thomson(i) 5 Your sheep shall be without blemish, a male and in its first year. You may take either from the lambs or the kids. 6 And it shall be kept up by you until the fourteenth day of this month. Then the whole multitude of the congregation of the children of Israel shall kill it in the evening. 7 And they shall take some of the blood and put it on the two side posts and on the lintel of the door of the house in which they are to eat it.