2. Though the outward manner of worship acceptable to God could not be known without revelation, and those revelations might be various; yet the inward manner of worship with our spirits was manifest by nature: and not only manifest by nature to Adam in innocence, but after his fall, and the scales he had brought upon his understanding by that fall. When God gave him his positive institutions before the fall, or whatsoever additions God should have made, had he persisted in that state; or, when he appointed him, after his fall, to testify his acknowledgment of him by sacrifices, there needed no command to him to make those acknowledgments by those outward ways prescribed to him, with the intention and prime affection of his spirit: this nature would instruct him in without revelation; for he could not possibly have any semblance of reason to think that the offering of beasts, or the presenting the first fruits of the increase of the ground, as an acknowledgment of God’s sovereignty over him and his bounty to him, was sufficient, without devoting to him that part wherein the image of his Creator did consist: he could not but discern, by a reflection upon his own being, that he was made for God as well as by God: for it is a natural principle of which the apostle speaks (Rom. xi. 36), “For of him, and through him, and to him are all things,” &c.: that the whole whereof he did consist was due to God; and that his body, the dreggy and dusty part of his nature, was not fit to be brought alone before God, without that nobler principle, which he had, by creation, linked with it. Nothing in the whole law of nature, as it is informed of religion, was clearer, next to the being of a God, than this manner of worshipping God with the mind and spirit. And as the Gentiles never sunk so low into the mud of idolatry, as to think the images they worshipped were really their gods, but the representations, or habitations of their gods; so they never deserted this principle in the notion of it, that God was to be honored with the best they were, and the best they had: as they never denied the being of a God in the notion, though they did in the practice, so they never rejected this principle in notion, though they did, and now most men do, in the inward observation of it: it was a maxim among them that God was mens animus, mind and spirit, and therefore was to be honored with the mind and spirit: that religion did not consist in the ceremonies of the body, but the work of the soul; whence the speech of one of them: “Sacrifice to the gods, not so much clothed with purple garments as a pure heart:”425 and of another: “God regards not the multitude of the sacrifices, but the disposition of the sacrificer.”426 It is not fit we should deny God the cream and the flower, and give him the flotten part and the stalks. And with what reverence and intention of mind they thought their worship was to be performed, is evident by the priests crying out often, Hoc age, Mind this, let your spirits be intent upon it. This could not but result,
(1.) From the knowledge of ourselves. It is a natural principle, “God hath made us, and not we ourselves” (Psalm c. 1, 2). Man knows himself to be a rational creature; as a creature he was to serve his Creator, and as a rational creature with the best part of that rational nature he derived from him. By the same act of reason that he knows himself to be a creature, he knows himself to have a Creator; that this Creator is more excellent than himself, and that an honor is due from him to the Creator for framing of him; and, therefore, this honor was to be offered to him by the most excellent part which was framed by him. Man cannot consider himself as a thinking, understanding, being, but he must know that he must give God the honor of his thoughts, and worship him with those faculties whereby he thinks, wills, and acts.427 He must know his faculties were given him to act, and to act for the glory of that God who gave him his soul, and the faculties of it; and he could not in reason think they must be only active in his own service, and the service of the creature, and idle and unprofitable in the service of his Creator. With the same powers of our soul, whereby we contemplate God, we must also worship God; we cannot think of him but with our minds, nor love him but with our will; and we cannot worship him without the acts of thinking and loving, and therefore cannot worship him without the exercise of our inward faculties: how is it possible then for any man that knows his own nature, to think that extended hands, bended knees, and lifted up eyes, were sufficient acts of worship, without a quickened and active spirit?
(2.) From the knowledge of God. As there was a knowledge of God by nature, so the same nature did dictate to man, that God was to be glorified as God; the apostle implies the inference in the charge he brings against them for neglecting it.428 “We should speak of God as he is,” said one;429 and the same reason would inform them that they were to act towards God as he is. The excellency of the object required a worship according to the dignity of his nature, which could not be answered but by the most serious inward affection, as well as outward decency; and a want of this cannot but be judged to be unbecoming the majesty of the Creator of the world, and the excellency of religion. No nation, no person, did ever assert, that the vilest part of man was enough for the most excellent Being, as God is; that a bodily service could be a sufficient acknowledgment for the greatness of God, or a sufficient return for the bounty of God. Man could not but know that he was to act in religion conformably to the object of religion, and to the excellency of his own soul:430 the notion of a God was sufficient to fill the mind of man with admiration and reverence, and the first conclusion from it would be to honor God, and that he have all the affection placed on him that so infinite and spiritual a Being did deserve: the progress then would be, that this excellent Being was to be honored with the motions of the understanding and will, with the purest and most spiritual powers in the nature of man, because he was a spiritual being, and had nothing of matter mingled with him. Such a brutish imagination, to suppose that blood and fumes, beasts and incense, could please a Deity, without a spiritual frame, cannot be supposed to befall any but those that had lost their reason in the rubbish of sense. Mere rational nature could never conclude that so excellent a Spirit would be put off with a mere animal service; an attendance of matter and body without spirit, when they themselves, of an inferior nature, would be loth to sit down contented with an outside service from those that belong to them; so that this instruction of our Saviour, that God is to be worshipped in spirit and truth, is conformable to the sentiments of nature, and drawn from the most undeniable principles of it. The excellency of God’s nature, and the excellent constitution of human faculties, concur naturally to support this persuasion; this was as natural to be known by men,