Perseverance

2 Corinthians 12:12
The signs of a true apostle were performed among you with all perseverance, by signs and wonders and miracles. (New American Standard)

James 1:2-4
Consider it all joy, my brethren, when you encounter various trials, knowing that the testing of your faith produces endurance.  An let endurance have its perfect result, so that you may be perfect and complete, lacking in nothing.  (New American Standard)

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1 Samuel 27
Story about David