God, Who gave all and pardons all, demands a return, not as a tax which is levied for its own sake, but as a confession of dependence, and like the silk flag presented to the sovereign, on the anniversaries of the two greatest of English victories, by the descendants of the conquerors, who hold their estates upon that tenure. The firstborn, thus dedicated, should have formed a sacred class, a powerful element in Hebrew life enlisted on the side of God. For these, as we have already seen, the Levites were afterwards substituted (Num. iii. 44), and there is perhaps some allusion to this change in the direction that “all the firstborn of man thou shalt redeem” (ver. 13). But yet the demand is stated too broadly and imperatively to belong to that later modification: it suits exactly the time to which it is attributed, before the tribe of Levi was substituted for the firstborn of all. “They are Mine,” said Jehovah, Who needed not, that night, to remind them what He had wrought the night before. It is for precisely the same reason, that St. Paul claims all souls for God: “Ye are not your own, ye are bought with a price; therefore glorify God with your bodies and with your spirits, which are God’s.” And besides the general claim upon us all, each of us should feel, like the firstborn, that every special mercy is a call to special gratitude, to more earnest dedication. “I beseech you, by the mercies of God, that ye present your bodies a living sacrifice” (Rom. xii. 1). There is a tone of exultant confidence in the words of Moses, very interesting and curious. He and his nation are breathing the free air at last. The deliverance that has been given makes all the promise that remains secure. As one who feels his pardon will surely not despair of heaven, so Moses twice over instructs the people what to do when God shall have kept the oath which He swore, and brought them into Canaan, into the land flowing with milk and honey. Then they must observe His passover. Then they must consecrate their firstborn. And twice over this emancipator and lawgiver, in the first flush of his success, impresses upon them the homely duty of teaching their households what God had done for them (vers. 8, 14; cf. xii. 26). This, accordingly, the Psalmist learned, and in his turn transmitted. He heard with his ears and his fathers told him what God did in their days, in the days of old. And he told the generation to come the praises of Jehovah, and His strength, and His wondrous works (Ps. xliv. 1, lxxviii. 4). But it is absurd to treat these verses, as Kuenen does, as evidence that the story is mere legend: “transmitted from mouth to mouth, it gradually lost its accuracy and precision, and adopted all sorts of foreign elements.” To prove which, we are gravely referred to passages like this. (_Religion of Israel_, i. 22, Eng. Vers.) The duty of oral instruction is still acknowledged, but this does not prove that the narrative is still unwritten.