We know that all things work together for good to them that love God, to them who are the called according to his purpose. - Romans 8:28

There are two things that I have always looked upon as difficult. The one is to make the wicked sad, and the other is to make the godly joyful. Dejection in the godly arises from a double spring: It is either because their inward comforts are darkened, or their outward comforts are disturbed.

To cure both of these troubles, I have written this book, hoping, by the blessing of God, that it will lift up their desponding hearts and make them look up with a more cheerful outlook. I would prescribe them to take, now and then, a little of this cordial, or healthful tonic: All things work together for good to them that love God (Romans 8:28).

To know that nothing hurts the godly is a matter of comfort, but to be assured that all things that happen will work together for their good, that their crosses will be turned into blessings, and that showers of affliction water the withering root of their grace and make it flourish more may fill their hearts with joy until they run over.

- Thomas Watson