Faith.  My choice to have confidence in God, believing His word to be true and trustworthy, results in God acting and responding in His great faithfulness.  My small- His great. 
Hidden faults.  I am impressed with my dentist's state-of-the-art tools.  But one camera he has exposes hidden cracks...hidden faults, that indicate a problem.  At this point, I like my old dentist with none of these tools.  He always had good news.  But my present dentist always has bad news, it seems.  Psalm 19:12 - "Who can discern his errors?  Forgive my hidden faults."  It's true- we can't see our hidden faults.  God can see them clearly, and can forgive them.  A dentist can only remove and repair- God can forgive and restore.

Have confidence in God, with humility and love.  -Brother Lawrence.