Faith alone it is, which effectually answers this end, as we learn from daily experience. For so long as we walk by faith not by sight, we go swiftly on in the way of holiness. While we steadily look, not at the things which are seen, but at those which are not seen, we are more and more crucified to the world and the world crucified to us. Let but the eye of the soul be constantly fixed, not on the things which are temporal, but on those which are eternal, and our affections are more and more loosened from earth, and fixed on things above. So that faith in general is the most direct and effectual means of promoting all righteousness and true holiness: of establishing the holy and spiritual law, in the hearts of them that believe. 3. And by faith, taken in its more particular meaning, for a confidence in a pardoning God, we establish his law in our own hearts, in a still more effectual manner. For there is no motive which so powerfully inclines us to love God, as the sense of the love of God in Christ. Nothing enables us like a piercing conviction of this, to give our hearts to him who was given for us. And from this principle of grateful love to God, arises love to our brother also. Neither can we avoid loving our neighbour, if we truly believe the love wherewith God hath loved us. Now this love to man grounded on faith and love to God, _worketh no ill to_ our _neighbour_. Consequently, it is (as the Apostle observes) _the fulfilling of the_ whole negative _law. For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet: and if there be any other commandment, it is briefly comprehended in this saying, Thou shalt love thy neighbour as thyself._ Neither is love content with barely working no evil to our neighbour. It continually incites us to do good: as we have time, and opportunity, to do good in every possible kind and in every possible degree to all men. It is therefore the fulfilling of the positive likewise, as well as of the negative law of God. 4. Nor does faith fulfil either the negative or positive law, as to the external part only: but it works inwardly by love, to the purifying of the heart, the cleansing it from all vile affections. _Every one that hath this_ faith _in him purifieth himself even as he is pure_: purifieth himself from every earthly, sensual desire, from all vile and inordinate affections: yea, from the whole of that carnal mind, which is enmity against God. At the same time, if it have its perfect work, it fills him with all goodness, righteousness and truth. It brings all heaven into his soul, and causes him to walk in the light even as God is in the light.