Exodus 12:22-23

LITV(i) 22 And take a bunch of hyssop and dip in the blood in the basin. And touch some of the blood in the basin to the upper doorpost and to the two side doorposts. And you shall not go out, anyone from the door of his house until morning. 23 And Jehovah will pass through to strike Egypt. And He will see the blood on the upper doorpost and on the two side doorposts, and Jehovah will pass over the door. And He will not allow the destroyer to come into your houses to strike you.