This thesis tries to discuss the consignation prayer (formula) of the West Syrian PRES as seen in the Nomocanon chapter 4.8 in relation to manuscripts before and after the time period of the Nomocanon. Liturgical and theological significances of the consignation prayer is also explored through this thesis.

An inductive historical-critical method is applied for this study, with the help of the underlying theory that the Nomocanon of BarHebraeus has contributed to a liturgical centralisation within the West-Syrian tradition in relation to the consignation prayer of the PRES. The oldest manuscripts used in this study are dated to the 10th century and the recent ones to the 20th century, thus analysing and studying the liturgical development of the West-Syrian PRES’s consignation prayer.