What were the Jews in Egypt told to do with the sacrificial lamb's blood?
The Jews in Egypt were told to kill the sacrificial lamb and place its blood on the two doorposts and the lintel of their houses. With the blood applied, they were to remain inside, secure, because the death angel would pass over them and not strike their firstborn.
Les teaches that these Jews had been slaves in Egypt and were told that if they would kill the sacrificial lamb, place the blood on the two doorposts and the lintel, and sit in their little huts and houses, then at the stroke of midnight the death angel would go over Egypt and kill every firstborn male. As Israel huddled in their small abodes, those who were people of faith had no fear of the death angel, because the blood was on the door and they were covered. They did not stand quivering in their boots; they were secure, knowing the blood was applied. Les then connects this to the church age, explaining that even as our Passover, when Christ died on the Roman cross, His blood was shed, and when we come under that blood, we are passed over from any judgment.
And they shall take of the blood, and strike it on the two side posts and on the upper door post of the houses, wherein they shall eat it.