God begat a beginning — the Logos, which was himself.

“I shall give you another testimony, my friends,” said I, “from the Scriptures, that God begat before all creatures a Beginning, [who was] a certain rational power [proceeding] from Himself, who is called by the Holy Spirit, now the Glory of the Lord, now the Son, again Wisdom, again an Angel, then God, and then Lord and Logos; and on another occasion He calls Himself Captain, when He appeared in human form to Joshua the son of Nave (Nun). For He can be called by all those names, since He ministers to the Father’s will, and since He was begotten of the Father by an act of will; just as we see happening among ourselves: for when we give out some word, we beget the word; yet not by abscission, so as to lessen the word [which remains] in us, when we give it out: and just as we see also happening in the case of a fire, which is not lessened when it has kindled [another], but remains the same; and that which has been kindled by it likewise appears to exist by itself, not diminishing that from which it was kindled. The Word of Wisdom, who is Himself this God begotten of the Father of all things, and Word, and Wisdom, and Power, and the Glory of the Begetter, will bear evidence to me, when He speaks by Solomon the following: ‘If I shall declare to you what happens daily, I shall call to mind events from everlasting, and review them. The Lord made me the beginning of His ways for His works. From everlasting He established me in the beginning, before He had made the earth, and before He had made the deeps, before the springs of the waters had issued forth, before the mountains had been established. Before all the hills He begets me.

Justin Martyr
Dialogue with Trypho
Chapter LXI

Jesus wrestled with Jacob and appeared in the burning bush

And I replied, “Now assuredly, Trypho, I shall show that, in the vision of Moses, this same One alone who is called an Angel, and who is God, appeared to and communed with Moses. For the Scripture says thus: ‘The Angel of the Lord appeared to him in a flame of fire from the bush; and he sees that the bush burns with fire, but the bush was not consumed. And Moses said, I will turn aside and see this great sight, for the bush is not burnt. And when the Lord saw that he is turning aside to behold, the Lord called to him out of the bush.’ In the same manner, therefore, in which the Scripture calls Him who appeared to Jacob in the dream an Angel, then [says] that the same Angel who appeared in the dream spoke to him, saying, ‘I am the God that appeared to thee when thou didst flee from the face of Esau thy brother;’ and [again] says that, in the judgment which befell Sodom in the days of Abraham, the Lord had inflicted the punishment of the Lord who [dwells] in the heavens;—even so here, the Scripture, in announcing that the Angel of the Lord appeared to Moses, and in afterwards declaring him to be Lord and God, speaks of the same One, whom it declares by the many testimonies already quoted to be minister to God, who is above the world, above whom there is no other [God].

Justin Martyr
Dialogue with Trypho
Chapter LX

Yahweh (the Christ) visited Abraham by the Oaks

I replied again, “If I could not have proved to you from the Scriptures that one of those three is God, and is called Angel, because, as I already said, He brings messages to those to whom God the Maker of all things wishes [messages to be brought], then in regard to Him who appeared to Abraham on earth in human form in like manner as the two angels who came with Him, and who was God even before the creation of the world, it were reasonable for you to entertain the same belief as is entertained by the whole of your nation.”

“… And now have you not perceived, my friends, that one of the three, who is both God and Lord, and ministers to Him who is in the heavens, is Lord of the two angels?”

Justin Martyr
Dialogue with Typho
Chapter LVI

When you say that this Christ existed as God before the ages..

And Trypho said, “We have heard what you think of these matters. Resume the discourse where you left off, and bring it to an end. For some of it appears to me to be paradoxical, and wholly incapable of proof. For when you say that this Christ existed as God before the ages, then that He submitted to be born and become man, yet that He is not man of man, this [assertion] appears to me to be not merely paradoxical, but also foolish.”

Justin Martyr
Dialogue with Trypho
Chapter XLVIII

Trypho understands Justin worships Christ as the Yahweh of the Old Testament

And Trypho said, “…For you utter many blasphemies, in that you seek to persuade us that this crucified man was with Moses and Aaron, and spoke to them in the pillar of the cloud; then that he became man, was crucified, and ascended up to heaven, and comes again to earth, and ought to be worshipped.”

Justin Martyr
Dialogue with Trypho
Chapter XXXVIII

The God of Psalm 46 is Christ

“Moreover, in the diapsalm of the forty-sixth Psalm, reference is thus made to Christ: ‘God went up with a shout, the Lord with the sound of a trumpet. Sing ye to our God, sing ye: sing to our King, sing ye; for God is King of all the earth: sing with understanding. God has ruled over the nations. God sits upon His holy throne. The rulers of the nations were assembled along with the God of Abraham, for the strong ones of God are greatly exalted on the earth.’

Justin Martyr
Dialogue with Trypho
Chapter XXVII

Christ is King of Glory

Accordingly, it is shown that Solomon is not the Lord of hosts; but when our Christ rose from the dead and ascended to heaven, the rulers in heaven, under appointment of God, are commanded to open the gates of heaven, that He who is King of glory may enter in, and having ascended, may sit on the right hand of the Father until He make the enemies His footstool, as has been made manifest by another Psalm. For when the rulers of heaven saw Him of uncomely and dishonored appearance, and inglorious, not recognizing Him, they inquired, ‘Who is this King of glory?’ And the Holy Spirit, either from the person of His Father, or from His own person, answers them, ‘The Lord of hosts, He is this King of glory.’

Justin Martyr
Dialogue with Trypho
Chapter XXXVI

Christ — God and Lord of hosts

And I said, “As you wish, Trypho, I shall come to these proofs which you seek in the fitting place; but now you will permit me first to recount the prophecies, which I wish to do in order to prove that Christ is called both God and Lord of hosts, and Jacob, in parable by the Holy Spirit; and your interpreters, as God says, are foolish, since they say that reference is made to Solomon and not to Christ, when he bore the ark of testimony into the temple which he built.

Justin Martyr
Dialogue with Trypho
Chapter XXXVI