And what are my troubles?

(The following in an excerpt from the diary of James Smith)

"For our light and momentary troubles are achieving for us an eternal glory that far outweighs them all!" 2 Corinthians 4:17

And what are my troubles?
A furnace to purge my dross,
a rod to correct my folly,
a burden to roll on my Lord,
a whip to drive me from man,
a medicine to cure me of sin,
a bridle to check my pride,
a knife to probe my wounds, and
a mirror to give me a faint view of my deserts.

But I want to be sweetly submissive to my lot. I want to acknowledge the love, justice, and compassion of my God in these things. I want . . .
  to take honey out of the carcass of this lion,
  to suck honey from the end of this rod, and
  to find oil flowing out of this apparently flinty rock!

But, alas! I often rebel, murmur, and repine at the rebukes of the Lord. I too often look at man working, instead of looking to the Lord over-ruling. I am apt . . .
  to quarrel with the human instrument — and forget the divine agent;
  to bite the stone — instead of looking for the hand which threw it!