The Word is inseparable from the Father

He appears arrayed in such forms as the Father pleases; and they call Him the Word, because He carries tidings from the Father to men: but maintain that this power is indivisible and inseparable from the Father, just as they say that the light of the sun on earth is indivisible and inseparable from the sun in the heavens.

… And that this power which the prophetic word calls God, as has been also amply demonstrated, and Angel, is not numbered [as different] in name only like the light of the sun but is indeed something numerically distinct, I have discussed briefly in what has gone before; when I asserted that this power was begotten from the Father, by His power and will, but not by abscission, as if the essence of the Father were divided; as all other things partitioned and divided are not the same after as before they were divided: and, for the sake of example, I took the case of fires kindled from a fire, which we see to be distinct from it, and yet that from which many can be kindled is by no means made less, but remains the same.

Justin Martyr
Dialogue with Trypho
Chapter CXXVIII

Christ is Lord, God and Son of God

“And that Christ being Lord, and God the Son of God, and appearing formerly in power as Man, and Angel, and in the glory of fire as at the bush, so also was manifested at the judgment executed on Sodom, has been demonstrated fully by what has been said.”

Justin Martyr
Dialogue with Trypho
Chapter CXXVIII

Jesus was fire and spoke through the bush to Moses

Therefore neither Abraham, nor Isaac, nor Jacob, nor any other man, saw the Father and ineffable Lord of all, and also of Christ, but [saw] Him who was according to His will His Son, being God, and the Angel because He ministered to His will; whom also it pleased Him to be born man by the Virgin; who also was fire when He conversed with Moses from the bush.

Justin Martyr
Dialogue with Trypho
Chapter CXXVII

Jesus, both God and Angel is sent by the Father

And what follows in the writings of Moses I quoted and explained; “from which I have demonstrated,” I said, “that He who is described as God appeared to Abraham, to Isaac, and to Jacob, and the other patriarchs, was appointed under the authority of the Father and Lord, and ministers to His will.” Then I went on to say what I had not said before: “And so, when the people desired to eat flesh, and Moses had lost faith in Him, who also there is called the Angel, and who promised that God would give them to satiety, He who is both God and the Angel, sent by the Father, is described as saying and doing these things.

Justin Martyr
Dialogue with Trypho
Chapter CXXVI

If you knew the prophets, you would not deny He is God

“But if you knew, Trypho,” continued I, “who He is that is called at one time the Angel of great counsel, and a Man by Ezekiel, and like the Son of man by Daniel, and a Child by Isaiah, and Christ and God to be worshipped by David, and Christ and a Stone by many, and Wisdom by Solomon, and Joseph and Judah and a Star by Moses, and the East by Zechariah, and the Suffering One and Jacob and Israel by Isaiah again, and a Rod, and Flower, and Corner-Stone, and Son of God, you would not have blasphemed Him who has now come, and been born, and suffered, and ascended to heaven; who shall also come again, and then your twelve tribes shall mourn. For if you had understood what has been written by the prophets, you would not have denied that He was God, Son of the only, unbegotten, unutterable God. For Moses says somewhere in Exodus the following: ‘The Lord spoke to Moses, and said to him, I am the Lord, and I appeared to Abraham, to Isaac, and to Jacob, being their God.

Justin Martyr
Dialogue with Trypho
Chapter CXXVI

The Eucharist is a presented sacrifice to God

Accordingly, God, anticipating all the sacrifices which we offer through this name, and which Jesus the Christ enjoined us to offer, i.e., in the Eucharist of the bread and the cup, and which are presented by Christians in all places throughout the world, bears witness that they are well-pleasing to Him.

Justin Martyr
Dialogue with Trypho
Chapter CXVII

Jesus, our Priest, is God

But I now say, that as [Scripture] said that the Son of Nave (Nun) by the name Jesus (Joshua) wrought powerful works and exploits which proclaimed beforehand what would be performed by our Lord; so I proceed now to show that the revelation made among your people in Babylon in the days of Jesus (Joshua) the priest, was an announcement of the things to be accomplished by our Priest, who is God, and Christ the Son of God the Father of all.

Justin Martyr
Dialogue with Trypho
Chapter CXV

Christ, the eternal Priest, King existed before all

“For the statement in the law, ‘Cursed is every one that hangs on a tree,’ confirms our hope which depends on the crucified Christ, not because He who has been crucified is cursed by God, but because God foretold that which would be done by you all, and by those like to you, who do not know that this is He who existed before all, who is the eternal Priest of God, and King, and Christ.

Justin Martyr
Dialogue with Trypho
Chapter XCVI

The cross had a crossbeam

Now, no one could say or prove that the horns of an unicorn represent any other fact or figure than the type which portrays the cross. For the one beam is placed upright, from which the highest extremity is raised up into a horn, when the other beam is fitted on to it, and the ends appear on both sides as horns joined on to the one horn. And the part which is fixed in the centre, on which are suspended those who are crucified, also stands out like a horn; and it also looks like a horn conjoined and fixed with the other horns.

Justin Martyr
Dialogue with Trypho
Chapter XCI