Here is, I. A commanding preface or introduction to this song of Moses, Deut. 32:1 , 2 . He begins, 1. With a solemn appeal to heaven and earth concerning the truth and importance of what he was about to say, and the justice of the divine proceedings against a rebellious and backsliding people, for he had said (Deut. 31:28) that he would in this song call heaven and earth to record against them. H...