Being joyful is a choice that we make. Our attitude is our choice.
"Count it all joy..." "Rejoice in the Lord always, and again I say rejoice."
"Consider it pure joy, my brothers and sisters,[a] whenever you face trials of many kinds, 3 because you know that the testing of your faith produces perseverance. 4 Let perseverance finish its work so that you may be mature and complete, not lacking anything. " James 1:2-4