In his original statement Einstein was probably referring to the actions of the Emergency Covenant of Pastors organized by Martin Niemöller, and the Confessing Church which he and other prominent churchmen such as Karl Barth and Dietrich Bonhoeffer established in opposition to Nazi policies. This power maneuver of the Church, these Concordats through the centuries with worldly powers . The Church sowed hate instead of love, though the Ten Commandments state: Thou shalt not kill." And then on p. Since when can one make a pact with Christ and Satan at the same time? The moment I hear the word 'religion', my hair stands on end.
Some quotes are from The New Quotable Einstein (2005) edited by Alice Calaprice, pp.
120-121, others from Ideas and Opinions by Albert Einstein (1954), where they appear in the section "Aphorisms for Leo Baeck." Human knowledge and skills alone cannot lead humanity to a happy and dignified life.
Another person present at the 1954 conversation offered his own slightly different transcription of Einstein's comments, which was published in the article "Death of a Genius" from the 2 May, 1955 issue of Life Magazine. We live now in a scientific age and in a psychological age. You know what the Herdenmenschen (men of herd mentality) can do when they are organized and have a leader, especially if he is a spokesmen for the Church.
"Einstein and the Poet" is viewable on Google Books here. But remember, that for God a thousand years is a day. I do not say that the unspeakable crimes of the Church for 2000 years had always the blessings of the Vatican, but it vaccinated its believers with the idea: We have the true God, and the Jews have crucified Him. Too often in history, men have followed the cry of battle rather than the cry of truth." When Hermanns asked him "Isn't it only human to move along the line of least resistance? It is indeed human, as proved by Cardinal Pacelli, who was behind the Concordat with Hitler.
Various translated editions have been published of this essay; or portions of it, including one titled "What I Believe"; another compilation which includes it is Ideas and Opinions (1954)Speech to the German League of Human Rights, Berlin (Autumn 1932); as published in Einstein: A Life in Science (1994) by Michael White and John Gribbin.