The answer
“He who is giving the Body says, ‘This is the body of Christ, which He gave up for our sins.’ The communicant then says, ‘Amen.’ And again, he who is giving the Blood says, ‘This is the blood of Christ, which He shed for us.’ The communicants respond saying, ‘Amen.’”1566
Fr. Tadros Yacoub Malaty
Notes
1566 Monastery of the Syrians, St. Basil the Great: His Life, Asceticism, and Church Canons (Arabic) (St. Mary’s Monastery (Deir al-Sourian), 2003): p. 545.