Justin Martyr — First Apology 63

And all the Jews even now teach that the nameless God spoke to Moses ; whence the Spirit of prophecy , accusing them by Isaiah the prophet mentioned above, said The ox knows his owner, and the ass his master's crib; but Israel does not know Me, and My people do not understand. Isaiah 1:3 And Jesus the Christ , because the Jews knew not what the Father was, and what the Son , in like manner accused them; and Himself said, No one knows the Father , but the Son; nor the Son , but the Father , and they to whom the Son reveals Him. Matthew 11:27 Now the Word of God is His Son, as we have before said. And He is called Angel and Apostle; for He declares whatever we ought to know , and is sent forth to declare whatever is revealed; as our Lord Himself says, He that hears Me, hears Him that sent Me.

Luke 10:16 From the writings of Moses also this will be manifest; for thus it is written in them, And the Angel of God spoke to Moses , in a flame of fire out of the bush, and said, I am that I am, the God of Abraham , the God of Isaac, the God of Jacob, the God of your fathers; go down into Egypt , and bring forth My people. Exodus 3:6 And if you wish to learn what follows, you can do so from the same writings; for it is impossible to relate the whole here.

But so much is written for the sake of proving that Jesus the Christ is the Son of God and His Apostle, being of old the Word, and appearing sometimes in the form of fire, and sometimes in the likeness of angels ; but now, by the will of God , having become man for the human race , He endured all the sufferings which the devils instigated the senseless Jews to inflict upon Him; who, though they have it expressly affirmed in the writings of Moses , And the angel of God spoke to Moses in a flame of fire in a bush, and said, I am that I am, the God of Abraham , and the God of Isaac, and the God of Jacob, yet maintain that He who said this was the Father and Creator of the universe . Whence also the Spirit of prophecy rebukes them, and says, Israel does not know Me, my people have not understood Me.

Isaiah 1:3 And again, Jesus , as we have already shown, while He was with them, said, No one knows the Father , but the Son; nor the Son but the Father , and those to whom the Son will reveal Him. Matthew 11:27 The Jews , accordingly, being throughout of opinion that it was the Father of the universe who spoke to Moses , though He who spoke to him was indeed the Son of God , who is called both Angel and Apostle, are justly charged, both by the Spirit of prophecy and by Christ Himself, with knowing neither the Father nor the Son. For they who affirm that the Son is the Father , are proved neither to have become acquainted with the Father , nor to know that the Father of the universe has a Son; who also, being the first-begotten Word of God , is even God.