Disappointments will show us our weaknesses. God promissed that His strength is made perfect in our weakness Corinthians Now we pray like David to let God change our hearts, to overcome these weaknesses.
I'm only responsible for what I say, not for what you understand. Although as an author I am responsible for making readers understand--a reader who doesn't understand is an unhappy reader. (And there is some value to leaving some questions unanswered.