Every believer faces trouble. It is part of life itself. As long as we are in this world, we will face trouble, saint and sinner alike. J.C. Ryle (Expository Thoughts on John's Gospel) calls the words of Christ in our text, "A precious remedy against an old disease." The disease, of course, is trouble. He goes on to describe it:

That disease is trouble of heart. That remedy is faith. Heart trouble is the commonest thing in the world. No rank or class or condition is exempt from it. No bars or bolts or locks can keep it out. Partly from inward causes and partly from outward, partly from the body and partly from the mind, partly from what we love and partly from what we fear, the journey of life is full of trouble. Even the best of Christians have many bitter cups to drink between grace and glory. Even the holiest saints find the world a vale of tears.