How can we tell that Martin Luther King, Jr. was a Christian?

One way
that we can tell Dr. King is a Christian is to examine his writing.

Dr. King
makes repeated appeals to Christianity in his "Letter from Birmingham Jail."  In the
letter's opening, he states that he has "the honor of serving as president of the Southern
Christian Leadership Conference," one whose affiliate is "the Alabama Christian
Movement for Human Rights."  Dr. King does not shy away from his association with
Christianity.  The fact that he leads these associations displays his Christian faith.

Dr. King also identifies himself as a Christian on a spiritual level.  His faith is
the...