The peace that Jesus gives is never engineered by circumstances on the outside.
Grapes become wine only when they have been squeezed.
Angels cannot preach the gospel, only beings such as Paul and you and I can preach the gospel.
Our Lord never referred to unanswered prayer. He taught that prayers are always answered: “Everyone who asks receives”. And He implied that prayers are answered rightly because of the heavenly Father's wisdom: “Your Father knows the things you have need of before you ask Him”.
Faith is the inborn capacity to see God behind everything.
Prayer imparts the power to walk and not faint.