Forbidden relationships in Judaism (איסורי ביאה Isurey bi'ah) are those intimate relationships which are forbidden by prohibitions in the Torah and also by rabbinical injunctions. Some of these prohibitions—those listed in Leviticus 18, known as arayot (Hebrew: עריות‎)—are considered such a serious transgression of Jewish law that one must give up one's life rather than transgress one of them. (This does not necessarily apply to a rape victim.) This is as opposed to most other prohibitions, in which one is generally required to transgress the commandment when a life is on the line.