“We probably seem to be anti-religious…none of us believes in God.”

Source: She Is the Darkness (1997), Chapter 104 (p. 652)

This phrase seems to have been first mentioned in Manual of a Perfect Atheist by Mexican writer Eduardo Garcia Del Rio, in 1989, without indicating any original source, which does make this quote unreliable. The quote has been widely circulated by atheists to try to prove that Chaplin was also one of them. However, taking into account what Chaplin himself wrote in his autobiography, when he was 75 years old, and what his family members wrote about him, calling Chaplin an atheist seems untenable. (http://www.adherents.com/people/pc/Charlie_Chaplin.html) According to his son, Charles Chaplin, Jr., in his book "My Father, Charlie Chaplin", pages 239-240, Chaplin was not an atheist; he quotes him saying: "I'm not an atheist"… "I can remember him saying on more than one occasion. 'I'm definitely an agnostic. Some scientists say that if the world were to stop revolving we'd all disintegrate. But the world keeps on going. Something must be holding us all in place — some Supreme Force. But what it is I couldn't tell you.". See also pages 210-211 of the book.
Disputed

Source: Singer from the Sea (1999), Chapter 23, “The Marae Morehu” (p. 370)

quoted in [2001-09-14, God Gave U.S. 'What We Deserve,' Falwell Says, John F. Harris, The Washington Post, 0190-8286, C03, http://www.washingtonpost.com/ac2/wp-dyn?pagename=article&contentId=A28620-2001Sep14]

Speech of the Sub-Treasury (1839), Collected Works 1:178 http://quod.lib.umich.edu/cgi/t/text/text-idx?c=lincoln;cc=lincoln;view=text;idno=lincoln1;rgn=div1;node=lincoln1:193
Variant (misspelling): The probability that we may fail in the struggle ought not to deter us from the support of a cause we believe to be just; and it shall not deter me.
1830s
Context: Broken by it, I, too, may be; bow to it I never will. The probability that we may fall in the struggle ought not to deter us from the support of a cause we believe to be just; it shall not deter me.

Source: Mozambique: the last three years have been “an experience of the cross” https://acninternational.org/mozambique-the-last-three-years-have-been-an-experience-of-the-cross/ (25 February 2021)

Response after being asked "Do you regard yourself as a religious person?", in an interview with Religion & Ethics Newsweekly http://www.pbs.org/wnet/religionandethics/2011/02/18/february-18-2011-ernest-gaines/8169/, February 18, 2011

The Credo of Empowerment, as quoted in David M. Mandell Atheist Acrimonious (Vervante, 2008), p. 176.

"In Egypt Land," December 30, 1946
TIME magazine (1939-1948)