Ushpizin

Ushpizin ("guests") refers to a custom of the Jewish holiday of Sukkot, according to which each night of the holiday, a different historical guest is figuratively invited to the sukkah. The custom is kabbalistic in origin, and many recite a prayer formally inviting the guests. Traditionally, the seven guests are: Abraham, Isaac, Jacob, Joseph, Moses, Aaron, and David. Some modern versions modify the list or add other guests as well.