Moses had already announced that Joshua would succeed him; but in view of the great difficulties which confronted the new leader, it was expedient that the guiding pillar should give him the symbol and pledge of God’s endorsement.

Two other sources of their allegiance were proposed. First, a song. National songs lay hold on memory and have a powerful effect in stirring the deepest emotions.

. This song, composed under the divine impulse, embodied the substance of the preceding pleadings and exhortations, and was suitable to be taught to the generations that followed. Be sure that nothing more efficiently preserves religion than noble hymns! Learn and teach them! Secondly, the book. See verse 24, etc. We have already heard of this. See Exod. 17:14; 24:4-7. No doubt it was to this necessity of recording the Law and chronicling the story of the Exodus that we owe the ‘origin of the sacred books which bear the name of Moses. See John 5: 46.