Tertullian’s The Resurrection of the Dead [8,2] A.D. 208-212:
The flesh, then, is washed, so that the soul may be made clean. The flesh is anointed, so that the soul may be dedicated to holiness. The flesh is signed, so that the soul too may be fortified. The flesh is shaded with the imposition of hands, so that the soul too may be illuminated by the Spirit. The flesh feeds on the Body and Blood of Christ, so that the soul too may fatten on God. They cannot, then, be separated in their reward, when they are united in their works.
Tertullian [ca. 200/206 AD] in his treaties on Prayer [6,2], quotes John 6 in connection with a spiritual understanding of the Lord’s prayer “give us this day our daily bread.” In a spiritual sense Christ is our daily Bread, presumably because of the practice of the daily reception of the Eucharist.
Later in that same treatise [19,1] he writes;
Likewise, regard to days of fast, many do not think they should be present at the sacrificial prayers, because their fast would be broken if they were to receive the Body of the Lord. Does the Eucharist, then, obviate a work devoted to God, or does it bind it more to god? Will not your fast be more solemn if, in addition, you have stood at God’s altar? The body of the Lord having been received and reserved, each point is secured: both the participation in the sacrifice and the discharge of duty.
Regarding worship on the Lord’s Day Tertullian also writes; [The Crown [3,4] AD 211]:
We take anxious care lest something of our Cup of Bread should fall upon the ground.
this Tertullian?
He says that Christ spoke in spiritual terms when referring to the eating of his flesh and drinking of his blood and did not mean this literally. So we come back to the question was Christ lying when he said ‘eat this..this is MY body” ..which he was wearing at the time...