Moreover, according to the nature of the evidence, or testimony, on which it is founded, it is distinguished into human and divine; both of these are contained in the apostle’s words, _If we receive the witness of men, the witness of God is greater_, 1 John v. 9. As for human testimony, though it may not be termed false, yet it can hardly be deemed any other than fallible, since it cannot be said concerning sinful man, that it is impossible for him to lie or deceive, or be deceived himself; but when we believe a thing on the divine testimony, our faith is infallible: it is as impossible for us to be deceived as it is for God to impart that to us, which is contrary to his infinite holiness and veracity. It is in this latter sense that we consider the word _faith_, when we speak of it as an act of religious worship, or included or supposed in our idea of saving faith; and so we style it a firm assent to every thing that God has revealed as founded on the divine veracity. Let us now consider faith as it contains an assent to a thing, not only as true, but as good; upon which account we call it a practical assent, first seated in the understanding; and then the will embraces what the understanding discovers to be conducive to our happiness; we first believe the truth of it, and then regulate our conduct agreeably thereunto. As when a criminal hears a report of an act of grace being issued forth by the king, he does not rest in a bare assent to the truth thereof, but puts in his claim to it. Or, as when a merchant is credibly informed, that there are great advantages to be obtained by trading into foreign countries; he receives the report with a design to use all proper methods to partake of the advantage; as our Saviour illustrates it, when he compares _the kingdom of heaven unto a merchant man seeking goodly pearls; who, when he had found one pearl of great price, went and sold all that he had, and bought_, Matt. xiii. 45. We have sufficient evidence to support our faith, that there is forgiveness of sin, through the blood of Christ; and that all spiritual blessings are treasured up in him, for the heirs of salvation: in this respect faith does not contain a bare speculative assent to the truth of this proposition; but it excites in us an endeavour to obtain these blessings in that way which is prescribed by him, who is the giver thereof.