they might recollect, that it was the engagement of the heart and the worship of the Spirit that was most agreeable to God; and that he took not any pleasure in their observance of ceremonies, without true piety within, and the true purity of their thoughts. _Prop. IV._ It is, therefore, as much every man’s duty to worship God in spirit, as it is their duty to worship him. Worship is so due to him as God, as that he that denies it disowns his deity; and spiritual worship is so due, that he that waives it denies his spirituality. It is a debt of justice we owe to God, to worship him; and it is as much a debt of justice to worship him according to his nature. Worship is nothing else but a rendering to God the honor that is due to him; and, therefore, the right posture of our spirits in it is as much, or more, due, than the material worship in the modes of his own prescribing: that is, grounded both upon his nature and upon his command; this only upon his command, that is perpetually due; whereas, the channel wherein outward worship runs may be dried up, and the river diverted another way; such a worship wherein the mind thinks of God, feels a sense of God, has a spirit consecrated to God, the heart glowing with affections to God; it is else a mocking God with a feather. A rational nature must worship God with that wherein the glory of God doth most sparkle in him. God is most visible in the frame of the soul, it is there his image glitters; he hath given us a jewel as well as a case, and the jewel as well as the case we must return to him; the spirit is God’s gift, and must “return to him;”[434] it must return to him in every service morally, as well as it must return to him at last physically. It is not fit we should serve {a213} our Maker only with that which is the brute in us, and withhold from him that which doth constitute us reasonable creatures; we must give him our bodies, but a “living sacrifice.”[435] If the spirit be absent from God when the body is before him, we present a dead sacrifice; it is morally dead in the duty, though it be naturally alive in the posture and action. It is not an indifferent thing whether we shall worship God or no; nor is it an indifferent thing whether we shall worship him with our spirits or no; as the excellency of man’s knowledge consists in knowing things as they are in truth, so the excellency of the will in willing things as they are in goodness. As it is the excellency of man, to know God as God; so it is no less his excellency, as well as his duty to honor God as God. As the obligation we have to the power of God for our being, binds us to a worship of him; so the obligation we have to his bounty for fashioning us according to his own image, binds us to an exercise of that part wherein his image doth consist. God hath “made all things for himself” (Prov. xvi. 4), that is, for the evidence of his own goodness and wisdom; we are therefore to render him a glory