(3.) This divine perfection is a sure foundation for our faith. As his truth, with respect to what he has revealed, is an infallible ground for our faith of assent, so his faithfulness, in fulfilling his promises, affords the highest encouragement for our trust and dependence on him: thus we are said to commit the keeping of our souls to him in well-doing, as unto a faithful Creator, 1 Pet. iv. 19. and, when we lay the whole stress of our salvation upon him, we have no reason to entertain any doubt about the issue thereof. Moreover, are we exposed to evils in this world? we may conclude, that as he has delivered, and does deliver, so we have reason to trust in him, that he will deliver us, 2 Cor. i. 10. and is there much to be done for us, to make us meet for heaven? we may be confident of this very thing, that he that has begun a good work in us, will perform it until the day of Jesus Christ, Phil. i. 6.
(4.) The faithfulness of God should be improved by us, as a remedy against that uneasiness and anxiety of mind, which we often have about the event of things, especially when they seem to run counter to our expectation. Thus when there is but a very melancholy prospect before us, as to what concerns the glory of God in the world, and the flourishing state of his church in it, upon which we are ready to say with Joshua, Lord, what wilt thou do unto thy great name? Josh. vii. 9. or when we have many sad thoughts of heart about the rising generation, and are in doubt whether they will adhere to, or abandon, the interest of Christ; when we are ready to fear whether there will be a reserve of faithful men, who will stand up for his gospel, and fill the places of those who are called off the stage, after having served their generation by the will of God; or when we are too much oppressed with carking cares about our outward condition in the world, when, like Christ’s disciples, we are immoderately thoughtful what we shall eat, what we shall drink, or wherewithal we shall be clothed, Matth. vi. 31. or how we shall be able to conflict with the difficulties that lie before us: our great relief against all this solicitude is to be derived from the faithfulness of God; for since godliness has the promise annexed to it, of the life that now is, as well as of that which is to come, 1 Tim. iv. 18. this promise shall have its accomplishment, so far as shall most redound to God’s glory, and our real advantage.
(5.) The consideration of the faithfulness of God should be improved, to humble, and fill us with shame and confusion of face, when we consider how treacherously we have dealt with him, how unsteadfast we have been in his covenant, how often we have broke our own promises and resolutions that we would walk more closely with him, how frequently we have backslidden from him, contrary to all the engagements which we have been laid under. Have we found any unfaithfulness in him? Has he, in the least instance, been worse than his word? as God says, when he reproves his people, What iniquity have your fathers found in me, that they are gone far from me, and have walked after vanity, and are become vain? Jer. ii. 5.