There are some things good but not pleasant, as sorrow and affliction. Sin is pleasant, but unprofitable; and sorrow is profitable, but unpleasant. As waters are purest when they are in motion, so saints are generally holiest when in affliction.
A Puritan Golden Treasury, compiled by I.D.E. Thomas, by permission of Banner of Truth, Carlisle, PA. 2000, p. 285.