Then therefore it was that Moses began to encourage them, and to exhort them to have a good heart, and rely on God's assistance by which they had been state of freedom and to hope for victory over those who were ready to fight with them, in order to deprive them of that blessing: that they were to suppose their own army to be numerous, wanting nothing, neither weapons, nor money, nor provisions, nor such other conveniences as, when men are in possession of, they fight undauntedly; and that they are to judge themselves to have all these advantages in the Divine assistance.
They are also to suppose the enemy's army to be small, unarmed, weak, and such as want those conveniences which they know must be wanted, when it is God's will that they shall be beaten; and how valuable God's assistance is, they had experienced in abundance of trials; and those such as were more terrible than war, for that is only against men; but these were against famine and thirst, things indeed that are in their own nature insuperable; as also against mountains, and that sea which afforded them no way for escaping; yet had all these difficulties been conquered by God's gracious kindness to them.

So he exhorted them to be courageous at this time, and to look upon their entire prosperity to depend on the present conquest of their enemies.
3.

And with these words did Moses encourage the multitude, who then called together the princes of their tribes, and their chief men, both separately and conjointly.

The young men he charged to obey their elders, and the elders to hearken to their leader.

So the people were elevated in their minds, and ready to try their fortune in battle, and hoped to be thereby at length delivered from all their miseries: nay, they desired that Moses would immediately lead them against their enemies without the least delay, that no backwardness might be a hindrance to their present resolution.