Parts 1 and 2 of this series covered the determined siege against Christianity by forces outside of the Christian fellowship. This final piece will examine the greatest peril to Christianity if all, the threat from within. For the purposes of this article, a threat from within is something or someone whose presence and/or purposes are detrimental to the existence and mission of Christianity. The biblical witness is the measuring standard to find and guard against these kinds of dangers.
The most serious outside threat to the Christian faith comes within nations where it is legal to practice, but it is generally despised in the popular culture. This situation is common among Western society today and manifests itself in a variety of ways.