Many Germans were able to justify the barbarity and inhumanity of Kristallnacht because centuries before Martin Luther, the Reformer of Germany, said these words:
I had made up my mind to write no more either about the Jews or against them. But since I learned that these miserable and accursed people do not cease to lure to themselves even us, that is, the Christians, I have published this little book, so that I might be found among those who opposed such poisonous activities of the Jews and who warned the Christians to be on their guard against them. I would not have believed that a Christian could be duped by the Jews into taking their exile and wretchedness upon himself. However, the devil is the god of the world, and wherever God’s word is absent he has an easy task, not only with the weak but also with the strong. May God help us. Amen.
So commences Luther’s most disgusting and disreputable book, On the Jews and Their Lies. He continues further on
The sun has never shone on a more bloodthirsty and vengeful people than they are who imagine that they are God’s people who have been commissioned and commanded to murder and to slay the Gentiles. In fact, the most important thing that they expect of their Messiah is that he will murder and kill the entire world with their sword. They treated us Christians in this manner at the very beginning throughout all the world. They would still like to do this if they had the power, and often enough have made the attempt, for which they have got their snouts boxed lustily.
Finally I wish to say this for myself: If God were to give me no other Messiah than such as the Jews wish and hope for, I would much, much rather be a sow than a human being. I will cite you a good reason for this. The Jews ask no more of their Messiah than that he be a Kokhba and worldly king who will slay us Christians and share out the world among the Jews and make them lords, and who finally will die like other kings, and his children after him. For thus declares a rabbi: You must not suppose that it will be different at the time of the Messiah than it has been since the creation of the world, etc.; that is, there will be days and nights, years and months, summer and winter, seedtime and harvest, begetting and dying, eating and drinking, sleeping, growing, digesting, eliminating—all will take its course as it does now, only the Jews will be the masters and will possess all the world’s gold, goods, joys, and delights, while we Christians will be their servants. This coincides entirely with the thoughts and teachings of Muhammad. He kills us Christians as the Jews would like to do, occupies the land, and takes over our property, our joys and pleasures. If he were a Jew and not an Ishmaelite, the Jews would have accepted him as the Messiah long ago, or they would have made him the Kokhba.
Luther may not have written those things had he been gifted with the ability to see into the future and observe how his words would be used against human beings who deserved, and deserve, far better than that from a Christian theologian. But he did write them. And the law, the ruthless horrifying law of unintended consequences used those words as justification for what Germany did to the Jews from Nov 9, 1938 on. And Luther is in part responsible.
Be careful what you write. It can be used in a way you never imagined in 10,000 years.