To cofty
A predicate nominative or predicate noun completes a linking verb and renames the subject. According to Greek scholar E. C. Colwell: "A definite predicate nominative has the article when it follows the verb; it does not have the article when it precedes the verb...A predicate nominative which precedes the verb cannot be translated as an indefinite or a 'qualitative' noun solely because of the absence of the article; if the context suggests that the predicate is definite, it should be translated as a definite noun despite the absence of the article." This is known as Colwell’s rule, this principle applies to certain uses of the Greek article. Now, I agree with WTS, that Colwell’s rule does not prove a definite article for “theos”, but it most definitely supports it.
The Watchtower Society states that in the Greek, when a singular predicate noun has no definite article “the” and it occurs before the verb, [as in the original Greek], then this points to a quality about the subject. Therefore, since the second occurrence of theos “God” has no definite article, it then refer to lower or lesser deity who possess godlike qualities therefore; “a god”.
It should be noted that in the NWT “God” is capitalized, therefore translated as articular [with the definite article] even though being anarthrous [not having the definite article] in John 1:6,12,13,18, 3:2,21, 9:33. If the WTS rule is etched in stone, and supersedes the translator’s interpretation of the verse why were these verses translated as God instead of a God.
Note that within the New Testament “God” appears 282 times anarthrous, of which it translates the anarthrous as articular 266 times as "God" and the remaining 16 times as anarthrous translating theos as either god, a god, gods, and godly. There is no question that from the context fifteen of the sixteen anarthrous “theos” were correctly translated, only John 1:1c is questionable.
Deity of Christ. explicit in John 1:1, 20:28, 12:41, Phil 2:6, Titus 2:13, and 2 Pe 1:1
As to the Deity of Jesus evolving over generations note what the early church fathers wrote on the subject.
Ignatius (105 AD): "Continue in intimate union with Jesus Christ, our God."
ibid: "I pray for your happiness forever in our God, Jesus Christ."
Aristides (125 AD): "The Christians trace the beginning of their religion to Jesus the Messiah. He is called the Son of the Most High God. It is said that God came down from heaven. He assumed flesh and clothed Himself with it from a Hebrew virgin."
Diognetus (c.125-200 AD): "God did not, as one might have imagined, send to men any servant, angel, or ruler.... Rather He sent the very Creator and Fashioner of all things - by whom He made the heavens.... As a king sends his son, who is also a king, so God sent Him. He sent Him as God."
Second Clement (c.150 AD): Brethren, it is fitting that you should think of Jesus Christ as of God - as the Judge of the living and the dead."
Justin Martyr (c.160 AD): "The Word...He is Divine."
ibid: "The Father of the universe has a Son. And He, being the First-Begotten Word of God, is even God."
ibid: "For Christ is King, Priest, God, Lord, Angel, and Man."
ibid: "He deserves to be worshipped as God and as Christ."
ibid: "David predicted that He would be born from the womb before the sun and moon, according to the Father's will. He made Him known, being Christ, as God, strong and to be worshipped."
ibid: "The Son ministered to the will of the Father. Yet, nevertheless, He is God, in that He is the First-Begotten of all creatures."
ibid: "If you had understood what has been written by the prophets, you would not have denied that He was God, Son of the Only, Unbegottten, Unuttterable God."
Melito (c.170 AD): "God was put to death, the Kiing of Israel slain."
Athenagoras (c.175 AD): "There is the one God and the Logos proceeding from Him, the Son. We understand that the Son is inseparable from Him."
Irenaeus (c.180 AD): "For He fulfills the bountiful and comprehensive will of His Father, inasmuch as He is Himself the Savior of those who are saved, and the Lord of those who are under authority, and the God of all those things that have been formed, the Only-Begotten of the Father."
ibid: "I have shown from the Scriptures that none of the sons of Adam are, absolutely and as to everything, called God, or named Lord. But Jesus is Himself in His own right, beyond all men who ever lived, God, Lord, King Eternal, and the Incarnate Word.... He is the Holy Lord, the Wonderful, the Counselor, the Beautiful in appearance, and the Mighty God."
ibid: "Thus He indicates in clear terms that He is God, and that His advent was in Bethlehem.... God, then, was made man, and the Lord did Himself save us.
ibid: "He is God, for the name Emmanuel indcates this."
ibid: "Christ Himself, therfore, together with the Father, is the God of the living, who spoke to Moses, and who was also manifested to the fathers."
ibid: "Or how shall man pass into God, unless God has first passed into man?"
ibid: "It is plain that He was Himself the Word of God, who was made the son of man. He received from the Father the power of remission of sins. He was man, and He was God. This was so that since as man He suffered for us, so as God He might have compassion on us."