Yigdal (; yighdāl, or ; yighdal; means "Magnify [O Living God]") is a Jewish hymn which in various rituals shares with Adon 'Olam the place of honor at the opening of the morning and the close of the evening service. It is based on the 13 Articles of Faith (sometimes referred to as "the 13 Creeds") formulated by Moses ben Maimon, and was written by Daniel ben Judah Dayan,Leopold Zunz, "Literaturgeschichte", p.