But the subject is so familiar to us that we need not enlarge upon the minute details of this feast. I will only add, that in Exodus 13 we find another thing – a character stamped on the firstborn brought into connection with the Passover. They belonged to God henceforth after a special sort as the consequence of deliverance from Egypt. But besides this complete devotedness we see also the ordinance of the unleavened bread in this connection, that is, unfeigned purity of heart by faith. The two things are here put together as flowing from the sense of a divinely wrought deliverance. This is remarkably evinced in the character now given them, as well as their preciousness with God. He who delivered them claimed them as His own. If the firstborn of an animal could not be sacrificed, it must like man’s firstborn be redeemed. “Sanctify unto Me all the firstborn.” This, as well as the connected eating of unleavened bread, is founded on the Passover.