For Moses confesses that the Levites who being taken in exchange for the first-born, were appointed ministers of him who alone is worthy to be ministered unto, were the ransom of all the rest of the Israelites. "For I," says God, "behold, I have chosen the Levites out of the midst of the children of Israel, instead of every first-born that openeth the womb from among the children of Israel; they shall be their ransom and the Levites shall belong to me: for every first-born is mine; from that day in which I smote all the first-born in the land of Egypt, I dedicated to myself all the first-born of Israel."