"Behold, how good and how pleasant it is for brethren to dwell together in unity" - this is the Scripture's praise of life together under the Word. But now we can rightly interpret the words "in unity" and say, "for brethren to dwell together through Christ." For Jesus Christ alone is our unity. "He is our peace." Through him alone do we have access to one another, joy in one another, and fellowship with one another.
Dietrich Bonhoeffer, Life Together, p. 39