The Real Presence in the Eucharist could not be more explicit. Once again,
scripturecatholic.com proves this teaching using the Word of God:
scripturecatholic.com/the_eucharist.html#eucharist-IIa
Not only do we have the Word of God as evidence, we have the testimony of the earliest Christians that Jesus is present in the consecrated Eucharist. Here are some:
“They abstain from the Eucharist and from prayer, because they confess not the Eucharist to be the flesh of our Saviour Jesus Christ, which suffered for our sins, and which the Father, of His goodness, raised up again.”
Ignatius of Antioch, Epistle to Smyrnaeans, 7,1 (c. A.D. 110).
“For not as common bread and common drink do we receive these; but in like manner as Jesus Christ our Saviour, having been made flesh and blood for our salvation, so likewise have we been taught that the food which is blessed by the prayer of His word, and from which our blood and flesh by transmutation are nourished, is the flesh and blood of that Jesus who was made flesh.” *Justin Martyr, First Apology, 66 (c. A.D. 110-165). *
“[T]he bread over which thanks have been given is the body of their Lord, and the cup His blood…” *Irenaeus, Against Heresies, IV:18,4 (c. A.D. 200). *
“He acknowledged the cup (which is a part of the creation) as his own blood, from which he bedews our blood; and the bread (also a part of creation) he affirmed to be his own body, from which he gives increase to our bodies.” *Irenaeus, Against Heresies, V:2,2 (c. A.D. 200). *
“But what consistency is there in those who hold that the bread over which thanks have been given is the Body of their Lord, and the cup His Blood, if they do not acknowledge that He is the Son of the Creator of the world…” *Irenaeus, Against Heresies, IV:18, 2 (c. A.D. 200). *
“For the blood of the grape–that is, the Word–desired to be mixed with water, as His blood is mingled with salvation. And the blood of the Lord is twofold. For there is the blood of His flesh, by which we are redeemed from corruption; and the spiritual, that by which we are anointed. And to drink the blood of Jesus, is to become partaker of the Lord’s immortality; the Spirit being the energetic principle of the Word, as blood is of flesh. Accordingly, as wine is blended with water, so is the Spirit with man. And the one, the mixture of wine and water, nourishes to faith; while the other, the Spirit, conducts to immortality. And the mixture of both–of the water and of the Word–is called Eucharist, renowned and glorious grace; and they who by faith partake of it are sanctified both in body and soul.” *Clement of Alexandria, The Instructor, 2 (ante A.D. 202). *
“Then, having taken the bread and given it to His disciples, He made it His own body, by saying, ‘This is my body,’ that is, the figure of my body. A figure, however, there could not have been, unless there were first a veritable body…He did not understand how ancient was this figure of the body of Christ, who said Himself by Jeremiah: ‘I was like a lamb or an ox that is brought to the slaughter, and I knew not that they devised a device against me, saying, Let us cast the tree upon His bread,’ which means, of course, the cross upon His body. And thus, casting light, as He always did, upon the ancient prophecies, He declared plainly enough what He meant by the bread, when He called the bread His own body. He likewise, when mentioning the cup and making the new testament to be sealed ‘in His blood,’ affirms the reality of His body. For no blood can belong to a body which is not a body of flesh. If any sort of body were presented to our view, which is not one of flesh, not being fleshly, it would not possess blood. Thus, from the evidence of the flesh, we get a proof of the body, and a proof of the flesh from the evidence of the blood.” *Tertullian, Against Marcion, 40 (A.D. 212). *