A Chalk Line Drawn

There is a chalk line drawn between what is called world and what is called church.  At best, it is a very pale line, for both church and world are steadily erasing it from existence. At the time of Christ, there was no chalk line at all in the Christian world; but rather, there was an impregnable wall.  For the true Church of today, this wall still exists.  For us there can be no chalk line between good and evil; there must be a wall. But, how can we erect an impregnable wall rather than a...