You shall take a bunch of hyssop, dip it in the blood which is in the basin, and touch some of the blood to the lintel [above the doorway] and to the two doorposts; and none of you shall go outside the door of his house until morning.

“You shall also make a basin of bronze, with a base of bronze, for washing. You shall put it [outside in the court] between the Tent of Meeting and the altar [of burnt offering], and you shall put water in it.