Adam Clarke on Job 25:3

Is there any number of his armies? - He has troops innumerable; he can serve himself of all his creatures; every thing may be a means of help or destruction, according to his Divine will. When he purposes to save, none can destroy; and when he is determined to destroy, none can save. It is vain to trust in his creatures against himself.

Upon whom doth not his light arise? - That is, his providence rules over all; he is universal Lord; he causes his sun to arise on the evil and the good, and sends his rain on the just and unjust.