hooberus,
Strong's says that theos means "a deity," not simply "deity." There is a difference. You want us to believe that theos can mean "God by nature," and it does not. Either a Person is the Almighty God, or he is not. Romans 15:5, 6 clearly shows that the God of Jesus Christ is his Father, and therefore Jesus is not on an equal plane with the Father, as you are so eager to insist. It would be pointless for you to argue, as trinitarians sometimes do, that the Father is the God of Jesus' human nature since the text specifically identifies the resurrected Jesus as the "Lord Jesus Christ."
Angels, Moses, the judges and kings of Israel, as well as Jesus, are all called "God" due to being the agents of the Almighty. However, none of them is equal to the God they represent. Even the devil is called ho theos at 2 Corinthians 4:4, but he is Almighty God only in the minds of those who worship him.
Thomas called Jesus ho theos. But a comparison of Hebrews 1:8, 9, with Psalm 45:6 will show that the kings of Israel were also addressed in that way. In Psalm 45, a king is called Elohim, and this is translated as God with a capital "G" in many Bibles. Hebrews 1 translates Elohim as ho theos. Now note this footnote on Psalm 45:6 in the NIV Study Bible:
O God. Possibly the king's throne is called God's throne because he is God's appointed regent. But it is also possible that the king himself is addressed as "god." The Davidic king (the "LORD's anointed," 2 Sa 19:21), because of his special relationship with God, was called at his enthronement the "son of God (see 2:7; 2 Sa 7:14; 1 Ch 28:6; cf. 89:27). In this psalm, which praises the king and especially extols his "splendor and majesty" (v. 3), it is not unthinkable that he was called "god" as a title of honor (cf. Isa 9:6). Such a description of the Davidic king attains its fullest meaning when applied to Christ, as the author of Hebrews does (Heb 1:8-9).
The NIV Study Bible uses "God" in the main text but uses "god" in its footnote. Nonetheless, the Hebrew word is translated as ho theos in the New Testament, the same expression that Thomas fittingly applied to Jesus, the ultimate king to sit upon the Davidic throne.
Your use of "human" as a comparison is meaningful. Each fully developed human is an individual being separate and distinct from all other humans. Within "human" nature there is more than one human. Using your comparison, there would have to be more than one God within the "God" or "Deity" nature. It is astounding to me that you seem unable to discern that from every angle you are unwittingly pointing to the existence of three unique Gods within your Trinity.
herk