The Art of Divine Contentment: An Exposition of Philippians 4:11 by Thomas Watson. Excerpt 57

Watson continues to point out the evils of being discontented:

3. Discontent does not ease us of our burden, but it makes the cross heavier. A contented spirit goes cheerfully under its affliction. Discontent makes our grief as unsupportable as it is unreasonable. If the leg be well, it can endure a fetter and not complain; but if the leg be sore, then the fetters trouble. Discontent of mind is the sore that makes the fetters of affliction more grievous. Discontent troubles us more than the trouble itself, it steeps the affliction in wormwood. When Christ was upon the Cross, the Jews brought him gall and vinegar to drink, that it might add to his sorrow. Discontent brings to a man in affliction, gall and vinegar to drink; this is worse than the affliction itself. Is it not folly for a man to embitter his own cross?
4. Discontent spins out our troubles the longer. A Christian is discontented because he is in want, and therefore he is in want because he is discontented; he murmurs because he is afflicted, and therefore he is afflicted, because he murmurs. Discontent doth delay and adjourn our mercies. God deals herein with us, as we use to do with our children; when they are quiet and cheerful, they shall have any thing; but if we see them cry and fret, then we withhold from them: we get nothing from God by our discontent but blows; the more the child struggles, the more it is beaten: when we struggle with God by our sinful passions, he doubles and trebles his strokes; God will tame our curst hearts. What got Israel by their peevishness? they were within eleven days journey to Canaan; and now they were discontented and began to murmur, God leads them a march of forty years long in the wilderness. Is it not folly for us to adjourn our own mercies? Thus you have seen the evil of discontent.

Thomas Watson lived from 1620-1686, in England. He wrote several books which survive. This blog, God willing, will post excerpts from his The Art of Divine Contentment: An Exposition of Philippians 4:11, over a number of weeks, on Sundays.

My source for the text is here, and I thank the Christian Classics Ethereal Library for making this text (and many others) available. The previous excerpt is here.
  
Philippians 4:11 Not that I speak because of lack, for I have learned in whatever state I am, to be content in it. (World English Bible, public domain.)