If thy people go out to battle against their enemy, whithersoever thou shalt send them, and shall pray unto the LORD toward the city which thou hast chosen, and [toward] the house that I have built for thy name:
Ver. 44. If thy people go out to battle.] Upon a necessary justice, or a just necessity. For that soldier can never answer it to God that strikes not more as a justicer, than as any enemy.
And shall pray unto the Lord.] Soldiers must fight and pray, and pray and fight, as did the late king of Sweden.