Every Christian who struggles with depression struggles to keep their hope clear. There is nothing wrong with the object of their hope - Jesus Christ is not defective in any way whatsoever. But the view from the struggling Christian's heart of their objective hope could be obscured by disease and pain, the pressures of life, and by Satanic fiery darts shot against them... All discouragement and depression is related to the obscuring of our hope, and we need to get those clouds out of the way and fight like crazy to see clearly how precious Christ is.
John PiperThe deepest need that you and I have in weakness and adversity is not quick relief, but the well-grounded confidence that what is happening to us is part of the greatest purpose of God in the universe - the glorification of the grace and power of his Son - the grace and power that bore Him to the cross and kept him there until the work of love was done.
John PiperSo the main question is not, Which humans brought about the death of Jesus but, What did the death of Jesus bring about for humans - including Jews and Muslims and Buddhists and Hindus and nonreligious secularists - and all people everywhere?When it is all said and done, the most crucial question is: Why? Why did Christ suffer and die? Not why in the sense of cause, but why in the sense of purpose?
John Piper