Dietrich Bonhoeffer said this quote
“ It is only when one knows the unutterability of the name of God that one can utter the name of Jesus Christ, it is only when one loves life and the earth so much that without them everything seems to be over that one may believe in the resurrection and a new world, it is only when one submits to God's law that one may speak of grace, and it is only when God's wrath and vengeance are hanging as grim realities over the heads of one's enemies that something of what it means to love and forgive them can touch our hearts. ”