
St. Cyril of Jerusalem expounds during his catechetical lectures (c. 347 AD) on the Eucharist, and also on the liturgy, which closely matches the order and substance of the liturgy as is in effect today in the Coptic Orthodox Church.

St. Cyril of Jerusalem expounds during his catechetical lectures (c. 347 AD) on the Eucharist, and also on the liturgy, which closely matches the order and substance of the liturgy as is in effect today in the Coptic Orthodox Church.