The constant faith of the Church from the Apostolic Fathers
attests to the fact that the Mass was the one Sacrifice of Calvary
made present to the faithful.
Cyprian (Carthage, 200-258), Letters, No 63:9 (To Caecilian)
In which portion we find that the cup which the Lord offered was
mixed, and that that was wine He called His Blood. Whence it
appears that the blood of Christ is not offered if there be no wine
in the cup, nor the Lord's sacrifice celebrated with a legitimate
consecration unless our oblation and sacrifice respond to
His passion.
Icon of St. Cyprian
.