Surely He who showed us mercy before we asked for it, will not withhold it now He has taught us how to plead for it agreeably to his own will. Though sin has abounded in us, grace has super-abounded in him. Though our enemies are many and mighty, Jesus is above them all. Though He may hide himself from us at times for a moment, He has given us a warrant to trust in him, even while we walk in darkness, and has promised to return and gather us with everlasting mercies.
The Christian calling, like many others, is easy and clear in theory, but not without much care and difficulty to be reduced to practice… We think at setting out that we sit down and count the cost, but alas! our views are so superficial at first, that we have occasion to correct our estimate daily. For every day shows us some new thing in the heart, or some new turn in the management of the war against us which we were not aware of. And upon these accounts, discouragements may arise so high as to bring us (I speak for myself) to the very point of throwing downs our arms and making either a tame surrender or a shameful flight.
– John Newton, in a letter to William Cowper, July 30, 1767