“I'm not one of those who wants to stop Christian traditions. This is historically a Christian country. I'm a cultural Christian the same way as many of my friends call themselves cultural Jews or cultural Muslims. So, yes, I love singing carols along with everybody else. I'm not one of those who wants to purge our society of our Christian history.”

David Congdon, The Mission of Demythologizing (2015), p. 532

Statement during National Prayer Breakfast (27 September 2010), "Obama 'Christian By Choice': President Responds To Questioner" by Charles Babington and Darlene Superville, Associated Press (28 September 2010) http://www.huffingtonpost.com/2010/09/28/obama-christian-by-choice_n_742124.html?view=print - Video : President Obama: "I am a Christian By Choice" at ABC News (29 September 2010) http://blogs.abcnews.com/politicalpunch/2010/09/president-obama-i-am-a-christian-by-choicethe-precepts-of-jesus-spoke-to-me.html
2010
Context: I'm a Christian by choice. My family didn't — frankly, they weren't folks who went to church every week. And my mother was one of the most spiritual people I knew, but she didn't raise me in the church. So I came to my Christian faith later in life, and it was because the precepts of Jesus Christ spoke to me in terms of the kind of life that I would want to lead — being my brothers' and sisters' keeper, treating others as they would treat me. I think also understanding that Jesus Christ dying for my sins spoke to the humility we all have to have as human beings, that we're sinful and we're flawed and we make mistakes, and that we achieve salvation through the grace of God. But what we can do, as flawed as we are, is still see God in other people and do our best to help them find their own grace. That's what I strive to do. That's what I pray to do every day. I think my public service is part of that effort to express my Christian faith. … One thing I want to emphasize, having spoken about something that obviously relates to me very personally, as president of the United States I'm also somebody who deeply believes that part of the bedrock strength of this country is that it embraces people of many faiths and no faith… that this is a country that is still predominantly Christian, but we have Jews, Muslims, Hindus, atheists, agnostics, Buddhists, and that their own path to grace is one that we have to revere and respect as much as our own.
That's part of what makes this country what it is.

On giving reservations to Muslims and Christians, as quoted in "Muslims and Christians shouldn't ask for reservation, says Subramanian Swamy" http://www.dnaindia.com/india/report-muslims-and-christians-shouldn-t-ask-for-reservation-says-subramanian-swamy-1995886, DNA India (16 June 2014)
2011-2014

"Our Contemporary Christ," in Borderland Theology and Other Essays (1968), p. 82

As quoted in "New S. African Leader`s Reforms Irk Left, Right" http://articles.chicagotribune.com/1990-01-01/news/9001010094_1_klerk-whites-only-zambian-president-kenneth-kaunda (1 January 1990), by Tom Masland, Chicago Tribune
1980s

Race: Science and Politics [1940], ch. 2

The Divine Commodity: Discovering A Faith Beyond Consumer Christianity (2009, Zondervan)

Obwohl die Juden auch nicht vor Angriffen auf das Christentum zurückschrecken, werden sie noch von denen geschützt, die das Priesterkleid tragen. Das Christentum der ersten Zeit war ein anderes als das heutige.
Die ersten Christen waren Kämpfer, die ihr Volk von der jüdischen Schmach befreien wollten. Dann stahl sich der Jude in diese Gemeinschaft ein und machte aus dem ursprünglich reinen Christentum ein Gespött der Menschheit. Die ersten Christen waren bereit, für die Erhaltung der christlichen Lehre zu sterben.
04/21/1932, speech in the Hercules Hall in Nuremberg ("Kampf dem Weltfeind", Stürmer publishing house, Nuremberg, 1938)

Source: Return to Roots (2002), p. 105