[3.] Thirdly, This our adversary raiseth up discouragements to us from _the unsuitableness of our hearts to our services_. Herein he endeavours to deaden our hearts, to clog our spirits, to hinder and molest us, and then he improves these indispositions and discomposures against the duty, in which he hath a double advantage; for (1.) He deprives us of that delight in duty which should whet on our desires to undertake it, so that we come to the Lord’s table as old Barzillai, without a taste or relish of what we eat or drink. When we come to hear, ‘the ear that trieth words,’ as the palate tasteth meat, finds no savour in what is spoken; and this Satan can easily do by the inward deadness or disquiet of the heart, even as the anguish of diseases takes away all pleasures which the choicest dainties afford; as Job observes, ‘When a man is chastened with pain upon his bed, his life abhors bread, and his soul dainty meat,’ chap. xxxiii. 20. And when a man is brought to loathe his duties, as having nothing of that sweetness and satisfaction in them which is everywhere spoken of, a small temptation may put him upon neglect of them. (2.) He hath plausible and colourable arguments by which he formeth an opinion in the minds of men, that in cases of indisposition they may do better to forbear than to proceed. He tells them they ought not to pray or present any service while they are so indisposed, that no prayer is acceptable where the Spirit doth not enliven the heart and raise the affections; that they do but take his name in vain, and increase their sin, and that they should wait till the Spirit fill their sails: and to say the truth, it is a great difficulty for a child of God to hold his feet in such slippery places. How many have I known complaining of this, and persuading themselves verily that they might do far better to leave off all service than to perform them thus! And scarcely have I restrained them from a compliance with Satan, by telling them that indispositions are no bar to duty, but that duty is the way to get our indispositions cured; that duty is absolutely required, and dispositions to be endeavoured; and that it is a less offence to keep to duty under indispositions, than wholly upon that pretence to neglect it; and indeed, where these indispositions are bemoaned and striven with, the services are often more acceptable to God than pleasing to ourselves. The principle is truly spiritual and excellent, a foundation of sapphires and precious stones, upon which, if we patiently wait, he will build a palace of silver; for that service is more spiritual that is bottomed and carried on by a conscientious regard to a command, when there are no moral motives from sense and comfort concurring, than that which hath more of delight to encourage it, while the power of the command is less swaying and influential.