Christian practice or holy life, is a manifestation and sign of the sincerity of a professing Christian, to the eye of his neighbours and brethren.

And that this is the chief sign of grace in this respect, is very evident from the word of God. Christ, who knew best how to give us rules to judge of others, has repeated, and inculcated the rule, that we should know them by their fruits; Matt. vii. 16. “Ye shall know them by their fruits.” And then after arguing the point, and giving clear reasons, why men’s fruits must be the chief evidence of what sort they are, in the following verses, he closes by repeating the assertion; ver. 20. “Wherefore by their fruits ye shall know them.” Again, chap. xii. 33. “Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt.”—As much as to say, it is a very absurd thing, for any to suppose that the tree is good, and yet the fruit bad; that the tree is of one sort, and the fruit of another; for the proper evidence of the nature of the tree is its fruit. Nothing else can be intended by that last clause in the verse, “For the tree is known by its fruit,” than that the tree is chiefly known by its fruit, that this is the main and most proper diagnostic by which one tree is distinguished from another. So “Every tree is known by his own fruit.” Christ no where says, Ye shall know the tree by its leaves or flowers; or ye shall know men by their talk, by the good story they tell of their experiences, by the manner and air of their speaking, or emphasis and pathos of expression; or ye shall know them by their speaking feelingly, or by abundance of talk, or by many tears and affectionate expressions, or by the affections ye feel in your hearts towards them: but by their fruits shall ye know them; the tree is known by its fruit; every tree is known by its own fruit. And as this is the evidence that Christ has directed us mainly to look at it in others, in judging of them, so it is the evidence that Christ has mainly directed us to give to others, whereby they may judge of us; Matt. v. 16. “Let your light so shine before men, that others seeing your good works, may glorify your Father which is in heaven.” Here Christ directs us to manifest our godliness to others. Godliness is as it were a light that shines in the soul: Christ directs that this light should not only shine within, but that it should shine out before men, that they may see it. But which way shall this be? It is by our good works. Christ doth not say, that others hearing your good words, your good story, or your pathetical expressions; but that others seeing your good works, may glorify your Father which is in heaven. Doubtless when Christ gives us a rule how to make our light shine, that others may have evidence of it, his rule is the best. And the apostles mention a christian practice, as the principal ground of their esteem of persons as true Christians. As the apostle Paul, in the Hebrews vi.6th chapter of Hebrews. There the apostle, in the beginning of the chapter, speaks of persons who have great common illuminations, who have been enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost, and have tasted the good word of God, and the powers of the world to come, who afterwards fall away, and are like barren ground, that is nigh unto cursing, whose end is to be burned: and then he immediately adds in the 9th verse, (expressing his charity for the christian Hebrews, as having that saving grace, which is better than all these common illuminations,) “But, beloved, we are persuaded better things of you, and things that accompany salvation: though we thus speak.” And then in the next verse, he tells them what was the reason he had such good thoughts of them: he does not say, that it was because they had given him a good account of a work of God upon their souls, and talked very experimentally; but it was their work, and labour of love; “for God is not unrighteous, to forget your work, and labour of love, which ye have showed towards his name, in that ye have ministered to the saints, and do minister.” 1 And the same apostle speaks of faithfully serving God in practice, as the proper proof to others of men’s loving Christ above all, and preferring his honour to their private interest, Phil. ii. 21, 22. “For all seek their own, not the things which are Jesus Christ’s: but ye know the proof of him, that as a son with the father, he hath served with me in the gospel.” So the apostle John expresses the same, as the ground of his good opinion of Gaius, 3 John 3-6. “for I rejoiced greatly when the brethren came and testified of the truth that is in thee.” But how did the brethren testify of the truth that was in Gaius? and how did the apostle judge of the truth that was in him? it was not because they testified that he had given them a good account of the steps of his experiences, and talked like one that felt what he said, and had the very language of a Christian: but they testified, “that he walked in the truth:” as it follows, 3 John 3-6.even as thou walkest in the truth. I have no greater joy than to hear that my children walk in the truth. Beloved, thou dost faithfully whatsoever thou dost to the brethren, and to strangers: which have borne witness of thy charity before the church.” Thus the apostle explains what the brethren had borne witness of, when they came and testified of his walking in the truth. And the apostle seems in this same place, to give it as a rule to Gaius how he should judge of others. In verse 10. he mentions one Diotrephes, that did not conduct himself well, and led away others after him; and then in the 11th verse., he directs Gaius to beware of such, and not to follow them: and gives him a rule whereby he may know them, exactly agreeable to that rule Christ had given before, “by their fruits ye shall know them,” says the apostle, “Beloved, follow” not that which is evil, but that which is good. He that doth good, is of God: but he that doth evil, hath not seen God.” And I would further observe, that the apostle James, expressly comparing that way of showing others our faith and Christianity by our practice or works, with other ways of showing our faith without works, or not by works, does plainly and abundantly prefer the former; Jam. ii. 18. “Yea, a man may say, Thou hast faith, and I have works: show me thy faith without thy works, and I will show thee my faith by my works.” A manifestation of our faith without works, or in a way diverse from works, is a manifestation of it in words, whereby a man professes faith. As the apostle says, ver. 14. “What doth it profit, my brethren, though a man say he hath faith?”—Therefore here are two ways of manifesting to our neighbour what is in our hearts; one by what we say, and the other by what we do. But the apostle abundantly prefers the latter as the best evidence. Now certainly all accounts we give of ourselves in words, our saying that we have faith, and that we are converted; telling the manner how we came to have faith, the steps by which it was wrought, and the discoveries and experiences that accompanied it, are still but manifesting our faith by what we say; it is but showing our faith by our words; which the apostle speaks of as falling vastly short of manifesting of it by what we do, and showing our faith by our works.