1. It argues much corruption in the heart. As by the eructations of the stomach, we may judge of the windiness and foulness of it; so, by the inordinate motions of our minds and hearts, we may judge of the weakness of its complexion. A strength of sin is evidenced by the eruptions and ebullitions of it in worship, when they are more sudden, numerous, and vigorous than the motions of grace. When the heart is apt, like tinder, to catch fire from Satan, it is a sign of much combustible matter suitable to his temptation. Were not corruption strong, the soul could not turn so easily from God when it is in his presence, and hath an advantageous opportunity to create a fear and awe of God in it. Such base fruit could not sprout up so suddenly, were there not much sap and juice in the root of sin. What communion with a living root can be evidenced without exercises of an inward life? That spirit, which is a well of living waters in a gracious heart, will be especially springing up when it is before God.
2. It shows much affection to earthly things, and little to heavenly. There must needs be an inordinate affection to earthly things, when, upon every slight solicitation, we can part with God, and turn the back upon a service glorious for him and advantageous for ourselves, to wed our hearts to some idle fancy that signifies nothing. How can we be said to entertain God in our affections, when we give him not the precedency in our understandings, but let every trifle jostle the sense of God out of our minds? Were our hearts fully determined to spiritual things, such vanities could not seat themselves in our understandings, and divide our spirits from God. Were our hearts balanced with a love to God, the world could never steal our hearts so much from his worship, but his worship would draw our hearts to it. It shows a base neutrality in the greatest concernments; a halting between God and Baal; a contrariety between affection and conscience, when natural conscience presses a man to duties of worship, and his other affections pull him back, draw him to carnal objects, and make him slight that whereby he may honor God. God argues the profaneness of the Jews’ hearts from the wickedness they brought into his house, and acted there (Jer. xxiii. 11): “Yea, in my house,” that is, my worship, “I found their wickedness,” saith the Lord. Carnality in worship is a kind of an idolatrous frame; when the heart is renewed, idols are cast to the moles and the bats (Isa. ii. 20).
3. It shows much hypocrisy to have our spirits off from God. The mouth speaks, and the carriage pretends what the heart doth not think; there is a dissent of the heart from the pretence of the body. Instability is a sure sign of hypocrisy. Double thoughts argue a double heart. The wicked are compared to chaff (Ps. i. 4), for the uncertain and various motions of their minds, by the least wind of fancy. The least motion of a carnal object diverts the spirit from God, as the scent of carrion doth the raven from the flight it was set upon. The people of God are called God’s spouse, and God calls himself their husband; whereby is noted the most intimate union of the soul with God; and that there ought to be the highest love and affection to him, and faithfulness in his worship; but when the heart doth start from him in worship, it is a sign of the unsteadfastness of it with God, and a disrelish of any communion with him; it is, as God complains of the Israelites, a going a whoring after our own imaginations. As grace respects God as the object of worship, so it looks most upon God in approaching to him. Where there is a likeness and love, there is a desire of converse and intimacy; if there be no spiritual entwining about God in our worship, it is a sign there is no likeness to him, no true sense of him, no renewed image of God in us; every living image will move strongly to join itself with its original copy, and be glad, with Jacob, to sit steadily in those chariots that shall convey him to his beloved Joseph.
III. Consider the danger of a carnal worship.
1. We lose the comfort of worship. The soul is a great gainer when it offers a spiritual worship, and as great a loser when it is unfaithful with God. Treachery and perfidiousness hinder commerce among men; so doth hypocrisy in its own nature communion with God. God never promised anything to the carcass, but to the spirit of worship. God hath no obligation upon him, by any word of his, to reward us with himself, when we perform it not to himself; when we give an outside worship, we have only the outside of an ordinance; we can expect no kernel, when we give God only the shell: he that only licks the outside of the glass, can never be refreshed with the rich cordial enclosed within. A cold and lazy formality will make God to withdraw the light of his countenance, and not shine with any delightful communications upon our souls; but if we come before him with a liveliness of affections, and steadiness of heart, he will draw the veil, and cause his glory to display itself before us. An humble praying Christian, and a warm, affectionate Christian in worship, will soon find a God who is delighted with such frames, and cannot long withhold himself from the soul. When our hearts are inflamed with love to him in worship, it is a preparation to some act of love on his part, whereby he intends further to gratify us. When John was in the Spirit on the Lord’s day, that is, in spiritual employment, and meditation, and other duties, he had that great revelation of what should happen to the church in all ages (Rev. i. 10); his being in the Spirit, intimates his ordinary course on that day, and not any extraordinary act in him, though it was followed with an extraordinary discovery of God to him; when he was thus engaged, “he heard a voice behind him.” God doth not require of us spirituality in worship to advantage himself, but that we might be prepared to be advantaged by him. If we have a clear and well‑disposed eye, it is not a benefit to the sun, but fits us to receive benefits from his beams. Worship is an act that perfects our own souls; they are then most widened by spiritual frames, to receive the influence of divine blessings, as an eye most opened receives the fruit of the sun’s light better than the eye that is shut. The communications of God are more or less, according as our spiritual frames are more or less in our worship; God will not give his blessings to unsuitable hearts. What a nasty vessel is a carnal heart for a spiritual communication! The chief end of every duty enjoined by God, is to have communion with him; and therefore it is called a drawing near to God; it is impossible, therefore, that the outward part of any duty can answer the end of God in his institution. It is not a bodily appearance or gesture whereby men can have communion with God, but by the impressions of the heart, and reflections of the heart upon God; without this, all the rich streams of grace will run beside us, and the growth of the soul be hindered and impaired. A “diligent hand makes rich,” saith the wise man; a diligent heart in spiritual worship, brings in rich incomes to the humble and spiritual soul.
2. It renders the worship not only unacceptable, but abominable to God. It makes our gold to become dross, it soils our duties, and bespots our souls. A carnal and unsteady frame shows an indifferency of spirit at best; and lukewarmness is as ungrateful to God, as heavy and nauseous meat is to the stomach; he “spews them out of his mouth” (Rev. iii. 16). As our gracious God doth overlook infirmities where intentions are good, and endeavors serious and strong; so he loathes the services where the frames are stark naught (Ps. lxvi. 18): “If I regard iniquity in my heart, the Lord will not hear my prayer.” Lukewarm and indifferent services stink in the nostrils of God. The heart seems to loathe God when it starts from him upon every occasion, when it is unwilling to employ itself about, and stick close to him: and can God be pleased with such a frame? The more of the heart and spirit is in any service, the more real goodness there is in it, and the more savory it is to God; the less of the heart and spirit, the less of goodness, and the more nauseous to God, who loves righteousness and “truth in the inward parts” (Ps. li. 6). And therefore infinite goodness and holiness cannot but hate worship presented to him with deceitful, carnal, and flitting affections; they must be more nauseous to God, than a putrefied carcass can be to man; they are the profanings of that which should be the habitation of the Spirit; they make the spirit, the seat of duty, a filthy dunghill; and are as loathsome to God, as money‑changers in the temple were to our Saviour. We see the evil of carnal frames, and the necessity and benefit of spiritual frames: for further help in this last, let us practise these following directions:
1.