What did the blood on the doorposts of the Passover picture?
The blood on the doorposts pictured the outline of the cross. With blood on the two side posts and the top, it foreshadowed Christ our Passover sacrificed for us. It pointed to the atonement and cleansing from sin that the cross would provide.
Les explains that the Passover in Egypt was followed by the seven days of unleavened bread, picturing a nation whose sins had been atoned for or cleansed. Paul brings that same analogy into our teaching today: believers are to be a new lump, unleavened, forgiven and cleansed, without sin so far as God is concerned. But leaving a little leaven allows it to expand and consume. Then Les points to the doorposts—two side posts and one on top—where in the mind's eye you can picture the outline of the cross, which he is sure is what God had in mind. This pictured Christ our Passover sacrificed for us.
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.
More Questions
What did the Israelites use to put the blood on the door posts and lintel?
They applied the blood on the door of their little slave hut in Egypt with a piece of hyssop, which was like our ragweed, putting it on the two door posts and on the lintel or headboard.