The ceremonies connected with the Passover sacrifice had the purpose of conveying instruction to Israel about the past and the future alike. The blood put on the two side posts and on the lintel of their doors was to remind them of Abraham, Isaac, and Jacob; and the bunch of hyssop for sprinkling the blood on the doors was to imply that, although Israel's position among the peoples of the earth is as lowly as that of the hyssop among the plants, yet this little nation is bound together like the bunch of hyssop, for it is God's peculiar treasure.