from Cyprian of Carthage
“He [Paul] threatens, moreover, the stubborn and forward, and denounces them, saying, ‘Whosoever eats the bread or drinks the cup of the Lord unworthily, is guilty of the body and blood of the Lord’ [1 Cor. 11:27]. All these warnings being scorned and contemned—[lapsed Christians will often take Communion] before their sin is expiated, before confession has been made of their crime, before their conscience has been purged by sacrifice and by the hand of the priest, before the offense of an angry and threatening Lord has been appeased, [and so] violence is done to his body and blood; and they sin now against their Lord more with their hand and mouth than when they denied their Lord” (The Lapsed 15–16 [A.D. 251]).
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And lastly Jane more on Cyprian…**
"For when Christ says, ‘I am the true vine.’ the blood of Christ is assuredly not water, but wine; neither can His blood by which we are redeemed and quickened appear to be in the cup, when in the cup there is no wine whereby the blood of Christ is shown forth, which is declared by the sacrament and testimony of all the Scriptures. For we find in Genesis also, in respect of the sacrament in Noe, this same thing was to them a precursor and figure of the Lord’s passion; that he drank wine; that he was drunken; that he was made naked in his household; that he was lying down with his thighs naked and exposed; that the nakedness of the father was observed by his second son, and was told abroad, but was covered by two, the eldest and the youngest; and other matters which it is not necessary to follow out, since this is enough for us to embrace alone, that Noe, setting forth a type of the future truth, did not drink water, but wine, and thus expressed the figure of the passion of the Lord…
For who is more a priest of the most high God than our Lord Jesus Christ, who offered a sacrifice to God the Father, and offered that very same thing which Melchizedek had offered, that is, bread and wine, to wit, His body and blood?..
Moreover the Holy Spirit by Solomon shows before the type of the Lord’s sacrifice, making mention of the immolated victim, and of the bread and wine, and, moreover, of the altar and of the apostles, and says, ‘Wisdom hath builded her house, she hath underlaid her seven pillars; she hath killed her victims; she hath mingled her wine in the chalice; she hath also furnished her table: and she hath sent forth her servants, calling together with a lofty announcement to her cup, saying, Whoso is simple, let him turn to me; and to those that want understanding she hath said, Come, eat of my bread, and drink of the wine which I have mingled for you.’ He declares the wine mingled, that is, he foretells with prophetic voice the cup of the Lord mingled with water and wine, that it may appear that that was done in our Lord’s passion which had been before predicted…
To which things divine Scripture adds, and says, ‘He shall wash His garment in wine, and His clothing in the blood of the grape.’ But when the blood of the grape is mentioned, what else is set forth than the wine of the cup of the blood of the Lord?..
The treading also, and pressure of the wine-press, is repeatedly dwelt on; because just as the drinking of wine cannot be attained to unless the bunch of grapes be first trodden and pressed, so neither could we drink the blood of Christ unless Christ had first been trampled upon and pressed, and had first drunk the cup of which He should also give believers to drink…
In which portion we find that the cup which the Lord offered was mixed, and that that was wine which He called His blood. Whence it appears that the blood of Christ is not offered if there be no wine in the cup…
the divine Scripture in the Apocalypse declares that the waters signify the people, saying, ‘The waters which thou sawest, upon which the whore sitteth, are peoples and multitudes, and nations of the Gentiles, and tongues,’ which we evidently see to be contained also in the sacrament of the cup. For because Christ bore us all, in that He also bore our sins, we see that in the water is understood the people, but in the wine is showed the blood of Christ. But when the water is mingled in the cup with wine, the people is made one with Christ, and the assembly of believers is associated and conjoined with Him on whom it believes; which association and conjunction of water and wine is so mingled in the Lord’s cup, that that mixture cannot any more be separated…
But the discipline of all religion and truth is overturned, unless what is spiritually prescribed be faithfully observed; unless indeed any one should fear in the morning sacrifices, lest by the taste of wine he should be redolent of the blood of Christ." (Letter 62:2-7, 62:9, 62:12-13, 62:15)