I am a poor, weak creature; unstable as water, I cannot excel. This corruption is too hard for me, and is at the very door of ruining my soul; and what to do I know not. My soul is become as parched ground, and a habitation of dragons. I have made promises and broken them; vows and engagements have been as a thing of nought. Many persuasions have I had that I had got the victory and should be delivered; but I am deceived; so that I plainly see, that without some eminent succor and assistance, I am lost, and shall be prevailed on to an utter relinquishment of God. But yet, though this be my state and condition, let the hands that hang down be lifted up, and the feeble knees be strengthened. Behold the Lord Christ, who hath all fullness of grace in his heart, all fullness of power in his hand: he is able to slay all these his enemies. There is a sufficient provision in him for my relief and assistance: he can take my drooping, dying soul, and make me more than a conqueror. He can make the dry, parched ground of my soul to become a pool, and my thirsty, barren heart as springs of water; yea, he can make this habitation of dragons, this heart so full of abominable lusts and fiery temptations, to be a place for grass and fruit for himself.
-John Owen, The Mortification of Sin, 146-147