Sanhedrin 57a . When a Jew murders a Gentile (\"Cuthean\"), there will be no death penalty. What a Jew steals from a Gentile he may keep. Moed Kattan 17a . If a Jew is tempted to do evil he should go to a city where he is not known and do the evil there. Sanhedrin 55b . A Jew may marry a three year old girl (specifically, three years \"and a day\" old). Sanhedrin 54b . A Jew may have sex with a child as long as the child is less than nine years old.