Do you know yet what you can endure? We are often so busy keeping ourselves comfortable we never experience those soul-wrenching depths. Jesus wrenches our souls. Let him, there is great reward.

Hebrews 10:35-39

Therefore do not throw away your confidence, which has a great reward.
For you have need of endurance, so that when you have done the will of God you may receive what is promised.
For,

   “Yet a little while, and the coming one will come and will not           delay;
     but my righteous one shall live by faith, and if he shrinks            back, my soul has no pleasure in him.”

But we are not of those who shrink back and are destroyed, but of those who have faith and preserve their souls.

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