A collection of sermons by Dr. Martin Lloyd-Jones is entitled Let Not Your Heart be Troubled addresses an existential struggle we all are going through right now – trouble and anxiety. All of the chapters address the matter helpfully and from a robustly biblical perspective. It is a very satisfying and comforting treatment of John 14:1-6 so suited to our times (though for him, in the 20th century it was the fear and threat of war). Below are two quotations, one each from the last two chapters.
“Now this is the central thing that is offered to us by the New Testament gospel. I can put it best of all at this point in the form of some questions: What exactly is your relationship to God? Can you say that you know God? Is he real to you? Is he personal to you? When you say your prayers, are you conscious that God is there and that he is listening to you? Do you know for certain that you are in contact and in communion with him? When you turn to him in prayer about any question whatsoever, do you do so with confidence? Do you feel that the access is free and easy, that it is open and that you really are speaking to God in a personal sense?
If you say yes, then you know what I mean by fellowship with God. It is the very thing about which our Lord was speaking to these disciples before he left them. We can come to the Father even while we are in this world, having a certain knowledge of him and intimacy with him so that whatever may happen to us in this life, we are always in touch with God and always in communion and fellowship with Him.” (Pp. 113-114)
“I remember a man a few years ago asking me, “You know, I never understood why the church calls Good Friday Good Friday – why not Bad Friday or Tragic Friday?…This is not a theoretical question, my friends; it is a very practical question. I have been pointing out, as we have considered this great chapter together, that its importance for us is that the greatest need of men and women in the world today is that of a quiet heart. We are troubled; our world is making us so. Daily we hear people telling us how serious things are. What everyone wants is a heart at rest in spite of what is happening around and about us, in spite of all these forebodings of evil. And here is the sovereign remedy, the only remedy. “Believe in me,” Christ said…” (Pp. 128-129)