The volume deals with the liturgical dimension of mystical, ascetical, and hymnographic texts and traditions within the Christian environment. Special attention is paid to liturgical texts of the Coptic and the Byzantine rite, especially in its Slavonic and Georgian versions. The volume also explores the Jewish background of some Christian liturgical settings and the afterlife of the Jewish priestly and liturgical traditions in the Christian milieu. The collection includes the critical edition of the early Slavonic version of the liturgy of the Presanctified Gifts accompanied by the historical study of this service.