- The act of faith upon this object, and that is resting on Christ crucified for pardon and life.I know there are many acts of the soul antecedent to this, without which the creature can never truly exercise this. As knowledge, especially of God and Christ, upon whose authority and testimony it relies: ‘I know whom I have believed,’ II Tim. 1:12. None will readily trust a stranger that he is wholly unacquainted with. Abraham indeed went he knew not whither, but he did not go with he knew not whom. The greatest thing God laboured to instruct Abraham in, and satisfy him with, was—
(1.) The knowledge of his own glorious self —who he was—that he might take his word and rely on it, how harsh and improbable, soever it might sound in sense or reason’s ear, ‘I am Almighty God, walk before me, and be thou perfect.’
(2.) Assent to the truth of the word of God. If this foundation-stone be not laid, faith's building cannot go on. Who will trust him that he dares not think speaks true?
(3.) A sense of our own vileness and emptiness. By the one he means us see our demerit, what we deserve, hell and damnation; by the other, our own impotency, how little we can contribute—yea, just nothing, to our own reconciliation. I join them together, because the one ariseth out of the other. Sense of this emptiness comes from the deep apprehensions a soul hath of the other’s fulness in him. You never knew a man full of self-confidence and self-abasement together. The conscience cannot abound with the sense of sin and the heart with self-conceit at the same time. ‘When the commandment came, sin revived, and I died,’ Rom. 7:9—that is, when the commandment came, in the accusations of it, to his conscience, sin, like a sleepy lion had lain still, and he secure and confident by it, when that began to roar in his conscience, then he died—that is, his vain-confidence of himself gave up the ghost. Both these are necessary to faith—sense of sin, like the smart of a wound, to make the creature think of a plaster to cure it; and sense of emptiness and insufficiency in himself or any creature to do the cure necessary to make him go out to Christ for cure. We do not go abroad to beg what we have of our own within doors. These, with some other, are necessary to faith. But the receiving of Christ, and resting on Christ, is that act of faith to which justification is promised. ‘He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God,’ John 3:18. Now every one that assents to the truth of what the Scripture saith of Christ, doth not believe on Christ. No; This believing on Christ implies an union of the soul to Christ and fiduciary recumbency on Christ. Therefore we are bid to take hold of Christ, Isa. 27:5, who is there called God’s ‘strength,’ as elsewhere his arm—‘that we may make peace with God, and we shall make peace with him.’ It is not the sight of a man's arm stretched out to a man in the water will save him from drowning, but the taking hold of it. Christ is a stone. Faith builds upon Christ for salvation. And how? but by laying its whole weight and expectation of mercy on him. What Paul, II Tim. 1:12, calls ‘believing’ in the former part of the verse, he calls in the latter part a ‘committing to him to be kept against that day.’
(4.) The fourth and last branch in the description, is the warrant and security that faith goes upon in this act. And this it takes from the promise. Indeed, there is no way how God can be conceived to contract a debt to his creature but by promise. There are ways for men to become debtors one to another, though never any promise passed from them. The father is a debtor to his child, and owes him love, provision, and nurture. The child is a debtor to his parent, and owes him honour and obedience, though neither of them promised this to each other. Much more doth the creature stand deep in God’s debt-book, and owes himself with all he hath to God his Maker, though he hath not the grace voluntarily to make these over to God by promise and covenant. But the great God is so absolute a Sovereign, that none can make a law to bind him but himself. Till he be pleased to pass an act of grace, of his own good-will, to give this or do that good thing to and for his poor creatures, no claim can be laid to the least mercy at his hands. There are two things therefore that are greatly to be heeded by the soul that would believe.