21 Then Moses called for all the elders of Israel, and said to them, Draw out, and take to you lambs according to your families, and kill the Passover.

22 And ye shall take a bunch of hyssop, and dip it in the blood that is in the basin, and strike the lintel and the two side-posts with the blood that is in the basin, and none of you shall go out of the door of his house until the mo

23 For LORD will pass through to smite the Egyptians, and when he sees the blood upon the lintel, and on the two side-posts, LORD will pass over the door, and will not allow the destroyer to come in to your houses to smite you.