The use and importance of faith, as it respects a sinner's justification before God, has been largely insisted on; but it is, likewise, of great use and importance in the daily concerns of life. It gives evidence and subsistence to things not seen, and realizes the great truths of the gospel, so as that they become abiding and living principles of support and direction while we are passing through this wilderness. Thus, it is as the eye and the hand, without which we cannot take one step with certainty or attempt any service with success. It is to be wished that this practical exercise of faith were duly attended to by all professors. We should not, then, meet with so many cases that put us to a stand, and leave us at a great difficulty to reconcile what we see in some of whom we would willingly hope well with what we read in Scripture of the inseparable concomitants of a true and lively faith. For how can we but be staggered when we hear persons speaking the language of assurance that they know their acceptance with God through Christ, and have not the least doubt of their interest in all the promises while, at the same time, we see them under the influence of unsanctified tempers, of a proud, passionate, positive, worldly, selfish, or churlish carriage?
It is not only plain from the general tenor of Scripture that a covetous, a proud, or a censorious spirit are no more consistent with the spirit of the gospel than drunkenness or whoredom, but there are many express texts directly pointed against the evils which, too often, are found amongst professors. Thus, the apostle James assures us, "That if any man seemeth to be religious, and bridleth not his tongue, his religion is vain;" and the Apostle John, "That if any man love the world, the love of the Father is not in him;" and he seems to apply this character to any man, whatever his profession or pretences may be "who, having this world's goods, and seeing his brother have need, shutteth up his bowels of compassion from him." Surely, these texts more than intimate that the faith which justifies the soul does, likewise, receive from Jesus grace for grace, whereby the heart is purified, and the conversation regulated, as becomes the gospel of Christ.
There are too many who would have the ministry of the gospel restrained to the privileges of believers and, when the fruits of faith and the tempers of the mind, which should be manifest in those who have "tasted that the Lord is gracious" are inculcated, think they sufficiently evade all that is said by calling it "legal" preaching. I would be no advocate for legal preaching, but we must not be deterred, by the fear of a hard word, from declaring the whole counsel of God; and we have the authority and example of St. Paul, who was a champion of the doctrines of free grace, to animate us in exhorting professors to "walk worthy of God, who has called them to His kingdom and glory." And, indeed, the expression of a believer's privilege is often misunderstood. It is a believer's privilege to walk with God in the exercise of faith and, by the power of His Spirit, to mortify the whole body of sin, to gain a growing victory over the world and self, and to make daily advances in conformity to the mind that was in Christ. And nothing that we profess to know, believe, or hope for, deserves the name of a privilege farther than we are influenced by it to die unto sin, and to live unto righteousness. Whosoever is possessed of true faith will not confine his enquiries to the single point of his acceptance with God or be satisfied with the distant hope of heaven hereafter. He will be, likewise, solicitous how he may glorify God in the world and enjoy such foretastes of heaven as are attainable while he is yet upon earth.
Faith, then, in its practical exercise, has, for its object, the whole Word of God, and forms its estimate of all things with which the soul is, at present, concerned, according to the standard of Scripture. Like Moses, it "endures as seeing Him who is invisible." When our Lord was upon earth, and conversed with His disciples, their eyes and hearts were fixed upon Him. In danger, He was their defender; their guide, when in perplexity; and to Him they looked for the solution of all their doubts and the supply of all their wants. He is, now, withdrawn from our eyes, but faith sets Him, still, before us for the same purposes and, according to its degree, with the same effects, as if we actually saw Him. His spiritual presence, apprehended by faith, is a restraint from evil, an encouragement to every service, and affords a present refuge and help in every time of trouble. To this is owing the delight a believer takes in ordinances, because there he meets his Lord; and to this, likewise, it is owing that his religion is not confined to public occasions, but he is the same person in secret as he appears to be in the public assembly, for he worships Him who sees in secret and dares appeal to His all-seeing eye for the sincerity of his desires and intentions. By faith, he is able to use prosperity with moderation, and knows and feels that what the world calls good is of small value unless it is accompanied with the presence and blessing of Him whom his soul loveth. And his faith upholds him under all trials by assuring him that every dispensation is under the direction of his Lord, that chastisements are a token of His love, that the season, measure, and continuance of his sufferings are appointed by infinite wisdom and designed to work for his everlasting good, and that grace and strength shall be afforded him according to his day. Thus, his heart being fixed, trusting in the Lord to whom he has committed all his concerns, and knowing that his best interests are safe, he is not greatly afraid of evil tidings, but enjoys a stable peace in the midst of a changing world. For, though he cannot tell what a day may bring forth, he believes that He who has invited and enabled him to cast all his cares upon Him will suffer nothing to befall him but what shall be made subservient to his chief desires, the glory of God in the sanctification and final salvation of his soul. And if, through the weakness of his flesh, he is liable to be startled by the first impression of a sharp and sudden trial, he quickly flees to his strong refuge, remembers it is the Lord's doing, resigns himself to His will, and patiently expects a happy issue.
By the same principle of faith, a believer's conduct is regulated towards his fellow creatures and, in the discharge of the several duties and relations of life, his great aim is to please God and to let His light shine in the world. He believes and feels his own weakness and unworthiness, and lives upon the grace and pardoning love of the Lord. This gives him an habitual tenderness and gentleness of spirit. Humbled under a sense of much forgiveness to himself, he finds it easy to forgive others if he has ought against any. A due sense of what he is in the sight of the Lord preserves him from giving way to anger, positiveness, and resentment. He is not easily provoked, but is "swift to hear, slow to speak, slow to wrath" and, if offended, easy to be intreated, and disposed, not only to yield to a reconciliation, but to seek it. As Jesus is his life, and righteousness, and strength, so He is his pattern. By faith, he contemplates and studies this great exemplar of philanthropy. With a holy ambition, he treads in the footsteps of his Lord and Master and learns, of Him, to be meek and lowly, to requite injuries with kindness, and to overcome evil with good. From the same views, by faith he derives a benevolent spirit and, according to his sphere and ability, he endeavours to promote the welfare of all around him. The law of love thus being written in his heart, and his soul set at liberty from the low and narrow dictates of a selfish spirit, his language will be truth, and his dealings, equity. His promise may be depended on without the interposition of oath, bond, or witness; and the feelings of his own heart, under the direction of an enlightened conscience and the precepts of Scripture, prompt him "to do unto others as he would desire they, in the like circumstances, should do unto him." If he is a master, he is gentle and compassionate; if a servant, he is faithful and obedient for, in either relation, he acts by faith under the eye of his Master in heaven. If he is a trader, he neither dares nor wishes to take advantage either of the ignorance or the necessities of those with whom he deals. And, the same principle of love influences his whole conversation. A sense of his own infirmities makes him candid to those of others. He will not readily believe reports to their prejudice without sufficient proof and, even then, he will not repeat them unless he is lawfully called to it. He believes that the precept, "Speak evil of no man," is founded upon the same authority with those which forbid committing adultery or murder and, therefore, he "keeps his tongue as with a bridle."
Lastly, faith is of daily use as a preservative from a compliance with the corrupt customs and maxims of the world. The believer, though in the world, is not of it. By faith, he triumphs over its smiles and enticements; he sees that all that is in the world, suited to gratify the desires of the flesh or the eye, is not only to be avoided as sinful, but as incompatible with his best pleasures. He will mix with the world so far as it is necessary in the discharge of the duties and of that station of life in which the providence of God has placed him, but no farther. His leisure and inclinations are engaged in a different pursuit. They who fear the Lord are his chosen companions, and the blessings he derives from the world, and throne, and ordinances of grace, make him look upon the poor amusements of those who live without God in the world with a mixture of disdain and pity and, by faith, he is proof against its frowns. He will obey God rather than man; he will "have no fellowship with the unfruitful works of darkness but will, rather, reprove them." And if, upon this account, he should be despised and injuriously treated, whatever loss he suffers in such a cause he accounts his gain, and esteems such disgrace his glory.
I am not aiming to draw a perfect character but to show the proper effects of that faith which justifies, which purifies the heart, worketh by love, and overcomes the world. An habitual endeavour to possess such a frame of spirit and, thus, to adorn the gospel of Christ, and that with growing success, is what I am persuaded you are not a stranger to; and I am afraid that they who can content themselves with aiming at anything short of this in their profession are too much strangers to themselves and to the nature of that liberty wherewith Jesus has promised to make His people free. That ye may go on from strength to strength, increasing in the light and image of our Lord and Saviour, is the sincere prayer of, etc.
From: The Works of the Rev. John Newton, Late Rector of the United Parishes of St. Mary Woolnoth and St. Mary Woolchurch Haw, London. A New Edition. In Nine Volumes (London: J. Haddon, 1822), 1:139-145.