The relationships of Jewish and Christian liturgies in the course of history is very complex. One can observe, among other things, mutual influences and adoptions, but also differently motivated tensions. The anthology investigates topics ranging from antiquity to the present. Among them are contributions on Gen 22 in hymnological traditions, receptions and transformations of the Psalms, coexistence and confrontation in the Middle Ages, liturgies in contexts of social upheaval, and the relationship beteen liturgy and music. The essays from the areas of Jewish Studies, Cultural Studies, Religious Studies, and Liturgical Studies open up numerous perspectives on the relationship between Jewish and Christian liturgies, but also generate new research perspectives.