Ger toshav is a halakhic term used in Judaism to designate the legal status of a Gentile (non-Jew) living in the Land of Israel who does not want to convert to Judaism but agrees to observe the Seven Laws of Noah, a set of imperatives which, according to the Talmud, were given by God as a binding set of universal moral laws for the "sons of Noah"—that is, all of humanity. A ger toshav, especially one who decides to follow the Noahic covenant out of religious belief rather than ethical reasoning, is commonly deemed a "Righteous Gentile", and is assured of a place in the World to Come .
The rainbow is the unofficial symbol of Noahidism, recalling the Genesis flood narrative in which a rainbow appears to Noah after the Flood; it represents God's promise to Noah to refrain from flooding the Earth and destroying all life again.