Ok I'll split it up for you. The referrence is Ignatius letter to the Smyrneans. And Justin's first Apology.
As far as Trinity and Hypostatic union you will not find it in scripture. Nor will you find "Soul Liberty" in scripture.
I was able to break it up a little bit.
By reference I meant actual quotes.
They abstain from the Eucharist and from prayer, because they do not confess that the Eucharist is the flesh of our Savior Jesus Christ, Flesh which suffered for our sins and which the Father, in His goodness, raised up again. (Ignatius of Antioch, Letter to the Smyrnaeans).
The food which has been made into the Eucharist by the Eucharistic prayer set down by Him, and by the change of which our blood and flesh are nourished, is both the flesh and the blood of that incarnated Jesus. (Justin Martyr, First Apology).
That bread which you see on the altar, having been sanctified by the word of God, is the Body of Christ. That chalice, or rather, what is in that chalice, having been sanctified by the word of God, is the Blood of Christ. (Augustine, Sermons, 227).
Recognizing that these writing are ancient, we must be careful not to read Roman Catholic doctrine into them. We come to these quotes with the knoweldge of transubstantiation already. But is that what these statements are teaching?
For example, Ratiumus, a 9th century monk wrote "The bread and wine are the body and blood of Christ in a figurative sense" (De corpore et sanguine Christi)
Ratiumus was making this disctinction because of the debate between him and Paschasius Radbertus.
The point is this, take Ignatius as our first example, he could be simply commenting on the elements being not common, but as Christ said, "This is my blood" and "This is my Body"
The idea of transubstantiation isn't taught there, but is read into that statement. Do we have an example of an ECF making a similiar statement as Ignatius but then clarifying what he meant? Yes. Tertullian.
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 (Against Marcion, Bk 4).
Justin Martyr is not teaching transubstation, but it is easy to see why some would think so. Consider this from another of Justin's writings:
Now it is evident, that in this prophecy [allusion is made] to the bread which our Christ gave us to eat, in remembrance of His being made flesh for the sake of His believers, for whom also He suffered; and to the cup which He gave us to drink, in remembrance of His own blood, with giving of thanks (Justin Martyr, Dialogue with Trypho).
While it may be that Justin believe in some sort of "real presence" regarding the Eucharist, he was not teaching transubstantiaion.
The same is true with Augustine, which I decided to include for more history. He is speaking figuratively. Augustine once wrote, "That's how he explained the sacrament of the Lord's Table; one loaf, one body, is what we all are, many though we be" (Augustine, Sermons, 227).
When we eat, do we turn into a loaf of bread? lol So if he speaks figuratively of the partakers, why do others insist he is speaking literally about the elements?