Rav Ashi believed that a Jew who sells a gentile property adjacent to a Jewish property should be excommunicated. The violation of Jewish women by gentile men was so frequent that the rabbis declared that a woman raped by a gentile should not be divorced from her husband, as Torah says: "The Torah outlawed the issue of a gentile as that of a beast." A gentile midwife was not to be employed for fear of the poisoning of the baby. The gentiles should be dealt with caution in cases of using them as witness in a criminal or civil suit. The gentile does not honor his promises like that of a Jew. The laws of the Torah were not to be revealed to the gentiles, for the knowledge of these laws might give gentiles an advantage in dealing with Jews. Shimon ben Lakish wrote that "A gentile who observes Sabbath deserves death".