I, an apostle of Jesus Christ by the will of God, to you who are in America, Grace be unto you, and peace from God our Father, through our Lord and Savior, Jesus Christ…

I am impelled to write you concerning the responsibilities laid upon you to live as Christians in the midst of an unChristian world. That is what I had to do. That is what every Christian has to do. But I understand that there are many Christians in America who give their ultimate allegiance to man-made systems and customs. They are afraid to be different. Their great concern is to be accepted socially. They live by some such principle as this: “everybody is doing it, so it must be alright.” For so many of you Morality is merely group consensus. In your modern sociological lingo, the mores are accepted as the right ways. You have unconsciously come to believe that right is discovered by taking a sort of Gallup poll of the majority opinion. How many are giving their ultimate allegiance to this way.

But American Christians, I must say to you as I said to the Roman Christians years ago, “Be not conformed to this world, but be ye transformed by the renewing of your mind.” Or, as I said to the Phillippian Christians, “Ye are a colony of heaven.” This means that although you live in the colony of time, your ultimate allegiance is to the empire of eternity. You have a dual citizenry. You live both in time and eternity; both in heaven and earth. Therefore, your ultimate allegiance is not to the government, not to the state, not to nation, not to any man-made institution. The Christian owes his ultimate allegiance to God, and if any earthly institution conflicts with God’s will it is your Christian duty to take a stand against it. You must never allow the transitory evanescent demands of man-made institutions to take precedence over the eternal demands of the Almighty God.

-Martin Luther King, Jr., Paul’s Letter to American Christians