http://www.biblicalunitarian.com/ar...-separate-from-the-only-true-god-the-father-2
Arguments from Omission
29. The Holy Spirit is never worshiped as are the Father and the Son, neither does any verse of Scripture command such worship. This is surprising if the Holy Spirit is truly a co-equal and co-eternal member of a triune “God” worthy of worship. If “God” is worthy of worship, and “God” exists in three persons, then shouldn’t each “God” person be worthy of worship? Then why is this idea not found in the Scripture?
30. In the opening of their New Testament epistles, every one of the writers identifies himself with God the Father and the Lord Jesus Christ, but not one does so with “the Holy Spirit.” If they were ignorant of the truth of a “tri-personal” God, and this truth constitutes the foundation of the Christian faith, then their apostleship was incomplete at best, and at worst they were teaching error. Their failure to clearly teach a three person Godhead proves the assertion that the doctrine of the tri-personal God and a third person in an eternal Godhead was not believed or practiced by the Apostles. In fact, the doctrine was not codified until the fourth century in the Athanasian creed. Since it was not believed nor practiced by the apostles, and the apostles were commissioned by the Lord Jesus himself, then it is logical to assert that the doctrine was not believed nor practiced by the Lord Jesus either.
31. Lacking sufficient Scriptural justification, the orthodox view of “the Holy Spirit” was fully developed in the fourth century after Christ and the Apostles, contemporaneously with the rise of Neoplatonic philosophy, which posited an abstract God “beyond being,” in which a variety of divine persons could be “one” in “essence.” This was basically a regurgitation of Gnostic philosophy, which had been vigorously opposed by the first century Apostles but later embraced by many of the “Church Fathers” who helped to establish “orthodoxy.”
32. In the Church Epistles, (Romans through Thessalonians), the Apostle Paul sends personal greetings from “God the Father and the Lord Jesus Christ.” If “the Holy Spirit” were an integral and personal part of a triune Godhead, then why does “He” not send “His” personal greetings as well? The only good answer is that there is no such person, for as an inspired writer of Scripture, Paul was on intimate talking terms with God and the Lord Jesus. If there were a third person involved, wouldn’t Paul have surely known about it and included “Him” in his greetings to the churches? When Paul does include additional persons in his greetings, salutations and adjurations, he names “the elect angels,” not “the Holy Spirit” (1 Tim. 5:21; cp. Luke 9:26 and Rev. 3:5).
33. In the NIV translation, Philippians 2:1 and 2 refers to “fellowship with the Spirit,” yet 1 John 1:3 says that our fellowship is with “the Father and with his Son, Jesus Christ.” Why is the Holy Spirit left out? A better translation of Philipians 2:1 is the King James Version, which renders the phrase “fellowship of the spirit,” pointing to the fellowship among believers who share a common spirit and who therefore ought to be able to get along with each other.
34. In the eternal city of Revelation 21 and 22, both God and Jesus Christ are prominently featured. Each is pictured as sitting on his throne (Rev. 22:1). If “the Holy Spirit” is a “co-eternal” member of a triune Godhead, it is strange indeed that He seems to have no seat of authority on the final throne. This is consistent with the biblical truth that there is one God, the Father, and one Lord, Jesus Christ, and no such separate person known as “the Holy Spirit.
By restoring the Father to His unique and singular position as God, we give Him all the worship, credit, respect, and awe He deserves as the One True God. By restoring Christ to his position as the man accredited by God, the only-begotten Son of the Father, the Last Adam, the one who could have sinned but voluntarily stayed obedient, the one who could have given up but loved us so much that he never quit, the one whom God highly exalted to be our Lord, we give Jesus Christ all the worship, credit, respect, and awe that he deserves, and we can draw great strength and determination from his example.