§ 15. (2.) Thy heart will also be likely to betray thee by trifling, when it should be effectually meditating. Perhaps, when thou hast an hour for meditation, the time will be spent before thy heart will be serious. This doing of duty, as if we did it not, ruins as many as the omission of it. Here let thine eye be always upon thy heart. Look not so much to the time it spends in the duty, as to the quantity and quality of the work that is done. You can tell by his work, whether a servant hath been diligent. Ask yourself, "What affections have been yet exercised? How much am I yet got nearer to heaven?" Think not, since thy heart is so trifling, it is better to let it alone: for, by this means, thou wilt certainly banish all spiritual obedience; because the best hearts, being but sanctified in part, will resist, so far as they are carnal. But rather consider well the corruption of thy nature; and that its sinful indispositions will not supersede the commands of God; nor one sin excuse for another; and that God has appointed means to excite our affections. This self-reasoning, self-considering duty of heavenly meditation, is the most singular means, both to excite and increase love. Therefore stay not from the duty, till thou feelest thy love constrain thee; any more than thou wouldst stay from the fire, till thou feelest thyself warm; but engage in the work, till love is excited, and then love will constrain thee to further duty.
§ 16. (3.) Thy heart will also be making excursions from thy heavenly meditation to other objects. It will be turning aside, like a careless servant, to talk with every one that passeth by. When there should be nothing in thy mind but heaven, it will be thinking of thy calling, or thy afflictions, or of every bird, or tree, or place thou seest. The cure is here the same as before; use watchfulness and violence. Say to thy heart, "What, did I come hither to think of my worldly business, of persons, places, news, or vanity, or of any thing but heaven, be it ever so good? _Canst thou not watch one hour?_ Wouldst thou leave this world, and dwell for ever with Christ in heaven, and not leave it one hour to dwell with Christ in meditation? _Is this thy love to thy friend?_ Dost thou love Christ, and the place of thy eternal, blessed abode, no more than this?" If _the_ ravening _fowls_ of wandering thoughts devour the meditations intended for heaven, they devour the life and joy of thy thoughts: Therefore _drive them away_ from thy sacrifice, and strictly keep thy heart to the work.
§ 17. (4.) Abruptly ending thy meditation before it is well begun, is another way in which thy heart will deceive thee. Thou mayest easily perceive this in other duties. In secret prayer, is not thy heart urging thee to cut it short, and frequently making a motion to have done? So in heavenly contemplation, thy heart will be weary of the work, and will stop thy heavenly walk before thou art well warm. But charge it in the name of God to stay, and not do so great a work by halves. Say to it, "Foolish heart! if thou beg a while, and goest away before thou hast thy alms, is not thy begging a lost labor? If thou stoppest before the end of thy journey, is not thy travel lost? Thou camest hither in hope to have a sight of the glory which thou must inherit; and wilt thou stop when thou art almost at the top of the hill, and turn back before thou hast taken thy survey? Thou camest hither in hope to speak with God, and wilt thou go before thou hast seen him? Thou camest to bathe thyself in the streams of consolation, and to that end didst unclothe thyself of thy earthly thoughts, and wilt thou only touch the bank and return? Thou camest to _spy out the land of promise_; go not back without _one cluster of grapes, to shew thy brethren_ for their encouragement. Let them see that thou hast tasted of the wine, by the gladness of thy heart; and that thou hast been anointed with the oil, by the cheerfulness of thy countenance: and hast fed of the milk and honey, by the mildness of thy disposition, and the sweetness of thy conversation. This heavenly fire would melt thy frozen heart, and refine and spiritualize it; but it must have time to operate." Thus pursue the work till something be done, till thy graces be in exercise, thy affections raised, and thy soul refreshed with the delights above; or if thou canst not obtain these ends at once, be the more earnest at another time. _Blessed is that servant, whom his Lord, when he cometh, shall find so doing._