our duty, perfectly knows our weakness. And he who feels his own weakness is fully encouraged to depend upon the power of his Saviour. Faith is then the principle of evangelical obedience, and the promises of his grace enable us for duty, at the very time that we are commanded to it.1 In this view are brought together the supreme authority of the Lawgiver, the total insufficiency of the creature, the full provisions of the Saviour, and the all-sufficiency of “the God of all grace.” We pray for what