That sacrifice too must be a whole burnt-offering. The man must give himself to God, "a living sacrifice," in body and in soul, which is but his "reasonable service." I pause not from my original purpose, to show how reasonable; but I insist upon the truth that a partial obedience, in whatever sense it be partial, will not meet the requisitions of Christianity. It is neither a part of human nature, nor a part of human life, which must be devoted to religion; but the whole--the whole of life, the whole of man. The man must be thoroughly, habitually, entirely religious. His loftiest purposes and grandest conceptions, his most familiar exercises and meanest employments, his whole impulse, energy and activity must be sanctified by faith--faith in God and his will, in Christ and his revelations. "Whether he eat or drink, or whatever he do, he must do all to the glory of God." _Whatever he do._ Mark the words. They leave room for no exception. Whatever be the nature of one's engagements, public or private; wherever he be, in the house or the street; whenever his course be examined, on Sunday or week-day, morning, noon, or night; he must be found living to God's glory,--through faith, I repeat, and through the obedience which is the consequence of faith. _Character_ is the service which he must render. A character of which the principle is indicated by the words of the Apostle, will obtain a twofold development, as it shall seek the direction on the one hand of piety, and on the other of morality. Each of these forms of growth will proceed from an idea as its germ; the one from the idea of God, the other from the idea of man. The idea of God,--the Supreme, Eternal, Infinite Being, whose will nothing can overrule, but whose unimpeachable perfection is a guarantee for the rectitude of his government. God, the mighty source Of all things, the stupendous force On which all things depend; From whose right arm, beneath whose eyes, All period, power, and enterprise Commence and reign and end.