On the Jews and Their Lies (German: Von den Jüden und iren Lügen; in modern spelling Von den Juden und ihren Lügen) is a 65,000-word antisemitic treatise written in 1543 by the German Reformation leader Martin Luther.
Luther's attitude toward the Jews took different forms during his lifetime. In his earlier period, until 1537 or not much earlier, he wanted to convert Jews to Christianity, but failed. In his later period when he wrote this particular treatise, he denounced them and urged their persecution.
In the treatise, he argues that Jewish synagogues and schools be set on fire, their prayer books destroyed, rabbis forbidden to preach, homes burned, and property and money confiscated. They should be shown no mercy or kindness, afforded no legal protection, and these "poisonous envenomed worms" should be drafted into forced labor or expelled for all time. He also seems to advocate their murder, writing "[W]e are at fault in not slaying them".
In the treatise, Luther describes Jews as a "base, whoring people, that is, no people of God, and their boast of lineage, circumcision, and law must be accounted as filth." Luther wrote that they are "full of the devil's feces ... which they wallow in like swine," and the synagogue is an "incorrigible whore and an evil slut".
In the first ten sections of the treatise, Luther expounds, at considerable length, upon his views concerning Jews and Judaism and how these compare to Christians and Christianity. Following the exposition, Section XI of the treatise advises Christians to carry out seven remedial actions. These are
Early in his life, Luther had argued that the Jews had been prevented from converting to Christianity by the proclamation of what he believed to be an impure gospel by the Catholic Church, and he believed they would respond favorably to the evangelical message if it were presented to them gently. He expressed concern for the poor conditions in which they were forced to live, and insisted that anyone denying that Jesus was born a Jew was committing heresy.