Passover or Pesach (/ˈpɛsɑːx, ˈpeɪsɑːx/; from Hebrew פֶּסַח Pesah, Pesakh), is an important, biblically derived Jewish festival. The Jewish people celebrate Passover as a commemoration of their liberation by God from slavery in Egypt and their freedom as a nation under the leadership of Moses. It commemorates the story of the Exodus as described in the Hebrew Bible especially in the Book of Exodus, in which the Israelites were freed from slavery in Egypt.