Martyn Lloyd-Jones

As we face the modern world with all its trouble and turmoil and with all its difficulties and sadness, nothing is more important than that we who call ourselves Christian, and who claim the Name of Christ, should be representing our faith in such a way before others as to give them the impression that here is the solution, and here is the answer. In a world where everything has gone so sadly astray, we should be standing out as men and women apart, people characterized by a fundamental joy and certainty in spite of conditions, in spite of adversity.

Source: Ortlund Jr., Raymond C.. Isaiah (Preaching the Word) (p. 407). Crossway. Kindle Edition.