III.  Yesterday the Lamb was slain and the door-posts were anointed, Ex. xii.  A fine piece of mystical interpretation. and Egypt bewailed her Firstborn, and the Destroyer passed us over, and the Seal was dreadful and reverend, and we were walled in with the Precious Blood.  To-day we have clean escaped from Egypt and from Pharaoh; and there is none to hinder us from keeping a Feast to the Lord our God—the Feast of our Departure; or from celebrating that Feast, not in the old leaven of malice and wickedness, but in the unleavened bread of sincerity and truth, 1 Cor. v. 8. carrying with us nothing of ungodly and Egyptian leaven.