In this quote, Bonhoeffer is telling us that we don’t have to make the Bible relevant. The Bible is the infallible Word of God and it will always be relevant. The Bible tells us, “All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness” (2 Timothy 3:16). When we deny this Word, we are also denying this truth. When we completely trust in God’s Word, we are better able to testify to it.