All spiritual acts well-pleasing unto God, as faith, repentance, obedience, are supernatural; flesh and blood revealeth not these things.

It must be observed, that the best of men, the most holy and spiritually minded, may have, nay, ought to have, their thoughts of spiritual things excited, multiplied, and confirmed, by the preaching of the word.

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.

Spiritual wisdom consists in finding out the subtleties, policies, and depths of any indwelling sin... to trace this serpent in all its turnings and windings; be able to say, at its most secret actings, 'This is your old way and course; I know what you aim at.'

Christ is the meat, the bread, the food of our souls. Nothing is in him of a higher spiritual nourishment than his love, which we should always desire.