"Jesus Christ as God" in Paul

In a systematic study of the Trinity throughout the Old and New Testaments, Edmund J. Fortman explains why, in comparison to writers like John, Christ's deity is not as explicit.  He does not, like Ignatius, refer to Jesus exclusively as "Jesus Christ, our God," since "God" or o theos was often used interchangeably to refer to the whole Godhead and just God the Father, thus confusing rather than enlightening the Jews in his audience.  

"[Paul] was reluctant to call Jesus 'God,' even though he gave Him a divine name and the attributes of divinity, and placed Him on the same level as the Father.  He preferred to call Him Lord, for this title with its more flexible meaning would not so easily offend a monotheist.  But if Paul so definitely ascribes divinity to Jesus, will he never simply call Him 'God'?  In three passages of the Pauline writings, Rom. 9:5, Tit. 2:13, Heb. 1:8, it is quite probably that christ is called 'God' in the fullest sense of the word." (The Triune God, pp. 19-20).  

Below are the three texts he cites: 

Romans 9:5 "Theirs are the patriarchs, and from them is traced the human ancestry of Christ, who is God over all, forever praised! Amen."

Titus 2:13: "while we wait for the blessed hope—the glorious appearing of our great God and Savior, Jesus Christ."

Hebrews 1:8 "But about the Son he says, "Your throne, O God, will last for ever and ever, and righteousness will be the scepter of your kingdom."

Titus 2:13 can be interpreted faithfully by the same Granville-Sharp rule that solidifies the "God and Savior" clause in II Pet. 1:1, contrary to what the NWT inserts in brackets.  

Romans 9:5 is too advanced Greek for me, so I will not deal with it here.  

Hebrew 1:8, however, is the most clear statement of the Son's deity.  Here is the Watchtower's mangled version:  

"But with reference to the Son: “God is your throne forever and ever, and [the] scepter of your kingdom is the scepter of uprightness."

It's amazing how a slight shift can so drastically change the meaning.  But forget dissecting the Greek on this one.  Let's go back to the source, Psalm 45:6:  

"Your throne, O God, will last for ever and ever; a scepter of justice will be the scepter of your kingdom."

It should be obvious whom the Psalmist is addressing.  

Jamieson Fausett-Brown's Bible Commentary notes: 

No lawful [linguistic] construction can be devised to change the sense here given and sustained by the ancient versions, and above all by Paul (Heb 1:8). Of the perpetuity of this government, compare 2Sa 7:13; Ps 10:16; 72:5; 89:4; 110:4; Isa 9:7.

Not only does the language defy that meaning, but so does logic itself, as well as the rest of the Scriptures.  There is no other place in the Bible that refers to God being a throne.  There are, however, a myriad of texts that describe God sitting on an eternal throne.  The Hebrew in the original Psalm unequivocally applies to God, Elohim.  However, the writer of Hebrews assumes a Messianic interpretation and applies it to Jesus, not failing to include the link between the Son and Elohim / Theos, or God.