In the Book of Hebrews chapter 1, we have God the Father address Jesus Christ, firstly in verse 8, where He says:
"and unto the Son: `Thy throne, O God, is to the age of the age; a sceptre of righteousness is the sceptre of thy reign"
Even in the Unitarian New Testament by Dr George Noyes, it reads:
"but to the Son: Thy throne O God is for ever and ever"
So, here we have the Father, in direct address to the Son, call Him "God". In the Greek it is, "ὁ Θεὸς", which has the definite artice, and cannot be translated as "god"
Then, in this same chapter in Hebrews, in verses 10-12, the Father continues to address Jesus Christ:
"and, `Thou, at the beginning, Lord, the earth didst found, and a work of thy hands are the heavens; these shall perish, and Thou dost remain, and all, as a garment, shall become old, and as a mantle Thou shall roll them together, and they shall be changed, and Thou art the same, and Thy years shall not fail.'"
This is direct Creation as the Act of Jesus Christ, as Testified by God the Father. Note, also, that here "Lord", is the equivalent to Yahweh. In fact, these words are from Psalm 102:24:27, which is used for Elohim, Almighty God:
"I say, `My God, take me not up in the midst of my days,' Through all generations are Thine years. Beforetime the earth Thou didst found, And the work of Thy hands are the heavens. They—They perish, and Thou remainest, And all of them as a garment become old, As clothing Thou changest them, And they are changed. And Thou art the same, and Thine years are not finished."
Now, if Jesus Christ was not The Actual Creator of the entire universe, then the words Spoken by the Father in Hebrews, are a mistake! Which is IMPOSSIBLE.