 A Passover Seder is a ritual meal held by Jews on the first two nights of the Passover holiday (first night only in Israel).The Seder is traditionally conducted in the home by the family and their invited guests, although it may also be held by any group of Jews, such as members of a synagogue, condominium complex, student group, army base, etc.At the Seder, participants read the Haggadah, a ritual text recounting the liberation of the Israelites from slavery in ancient Egypt.