Earnest.... In Justin Martyr's Dialogue with Trypho, Trypho first asks "show us that the spirit of prophecy admits another god besides the Maker of all things", and Justin answers "there is, and that there is said to be, another god and lord subject to the Maker of all things; who is also called an angel, because he announces to men whatsoever the Maker of all things (above whom there is no other god) wishes to announce to them.". Whatever you may argue about Justin, he is answering a question about another god.
If you read a little further, he makes clear he understands that Angel is the "God of Abraham" but not the Maker/Father of all things (aka the Most High).:
Have you perceived, sirs, that this very God whom Moses speaks of as an Angel that talked to him in the flame of fire, declares to Moses that He is the God of Abraham, of Isaac, and of Jacob?....this God who appeared to Abraham, and is minister to God the Maker of all things, being born of the Virgin, became man, of like passions with all, as you said previously.I mentioned this verse earlier, as evidence of some regarded a second power as a substitute/stand-in for God. It is interesting that Justin identified that angel with God's name as his Christ but known by many other names.
I shall give you another testimony, my friends, from the Scriptures, that God begot 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.......Moreover, in the book of Exodus we have also perceived that the name of God Himself which, He says, was not revealed to Abraham or to Jacob, was Jesus, and was declared mysteriously through Moses. Thus it is written: ‘And the Lord spake to Moses, Say to this people, Behold, I send My angel before thy face, to keep thee in the way, to bring thee into the land which I have prepared for thee. Give heed to Him, and obey Him; do not disobey Him. For He will not draw back from you; for My name is in Him.‘ Now understand that He who led your fathers into the land is called by this name Jesus, and first called Auses(Oshea, Joshua). For if you shall understand this, you shall likewise perceive that the name of Him who said to Moses, ‘for My name is in Him,’ was Jesus. For, indeed, He was also called Israel, and Jacob’s name was changed to this also.
I find this last paragraph especially interesting as Justin insists the name "Jesus" was another of the many names this second power went by. He repeats a tradition that the 'Joshua' of the Exodus story was to be interpreted in Pesher style.
It is pretty clear that Philonic reading of the Pentateuch was a bedrock foundation of the belief in a Christ. A Christ who was a second power, an emanation of the Father of all. This not the teaching of the JWs nor the Trinity.
Sorry about the quotes, sometimes it does weird things for me.