When sin lets us alone we may let sin alone; but as sin is never less quiet than when it seems to be most quiet, and its waters are for the most part deep when they are still, so ought our contrivances against it to be vigorous at all times and in all conditions, even where there is least suspicion.

In or towards whomsoever the Holy Spirit puts forth His power, or acts his grace for their regeneration, he removes all obstacles, overcomes all oppositions, and infallibly produces the intended effect.

The vigour, and power, and comfort of our spiritual life depends on the mortification of the deeds of the flesh...The choicest believers, who are assuredly freed from the condemning power of sin, ought yet to make it their business all their days to mortify the indwelling power of sin...Do you mortify; do you make it your daily work; be always at it whilst you live; cease not a day from this work; be killing sin or it will be killing you.

So great an advantage is given to sin and Satan by your temper and disposition, that without extraordinary watchfulness, care, and diligence, they will prevail against your soul.

Let, then, the word be preached, and the sins of men will be rebuked, lust will be restrained, and some oppositions will be made against sin, though that be not the effect aimed at.

For a man solemnly to undertake the interpretation of any portion of Scripture without invocation of God, to be taught and instructed by His Spirit, is a high provocation of him; nor shall I expect the discovery of truth from any one who thus proudly engages in a work so much beyond his ability.

If we would talk less and pray more about them, things would be better than they are in the world: at least, we should be better enabled to bear them.