Why is the Holy Spirit Left Out of Every Greeting?

The Trinity doctrine teaches that the Holy Spirit is a literal being that is CO-EQUAL with the Father and Son. CO-EQUAL means equal in every single way possible.

So what an inexplicable oversight for Paul if the Spirit were indeed a literal being CO-EQUAL with the Father and Son, because Paul excluded the Holy Spirit in EVERY SINGLE ONE of his greetings in EVERY SINGLE LETTER he wrote! And Peter and John did the same.

“Grace to you and peace from God our Father, and the Lord Jesus Christ.” Romans 1:7 

“Grace be unto you, and peace, from God our Father, and from the Lord Jesus Christ.” 1 Corinthians 1:3 

“Grace be to you and peace from God our Father, and from the Lord Jesus Christ.” 2 Corinthians 1:2 

“Grace be to you and peace from God the Father, and from our Lord Jesus Christ,” Galatians 1:3 

“Grace be to you, and peace, from God our Father, and from the Lord Jesus Christ.” Ephesians 1:2 

“Grace be unto you, and peace, from God our Father, and from the Lord Jesus Christ.” Philippians 1:2 

“Grace be unto you, and peace, from God our Father and the Lord Jesus Christ.” Colossians 1:2 

“Grace be unto you, and peace, from God our Father, and the Lord Jesus Christ.” 1 Thessalonians 1:1 

“Grace unto you, and peace, from God our Father and the Lord Jesus Christ.” 2 Thessalonians 1:2 

“Grace, mercy, and peace, from God our Father and Jesus Christ our Lord.” 1 Timothy 1:2 

“Grace, mercy, and peace, from God the Father and Christ Jesus our Lord.” 2 Timothy 1:2 

“Grace, mercy, and peace, from God the Father and the Lord Jesus Christ our Saviour.” Titus 1:4 

“Grace to you, and peace, from God our Father and the Lord Jesus Christ.” Philemon 1:3 

“Grace and peace be multiplied unto you through the knowledge of God, and of Jesus our Lord,” 2 Peter 1:2

“Grace, mercy and peace will be with us, from God the Father and from Jesus Christ, the Son of the Father,” 2 John 1:3

How can the Holy Spirit be a literal co-equal being when it is consistently left out of every greeting?

If the Spirit was an individual being co-equal with the Father and Son, then this consistent omission is incomprehensible. It would have been effrontery and insubordination by the apostles at the highest level. This would be like having a country with three presidents but only ever acknowledging two of them. In fact, not once is the Holy Spirit ever uplifted or praised in the Scriptures. It is always just God the Father and His Son Jesus Christ. And why is that?

Because “there is but ONE God, the Father, of whom are all things, and we in him; and ONE Lord Jesus Christ, by whom are all things, and we by him.” 1 Corinthians 8:6. That's why!

The Holy Spirit is the “Spirit of God,” not something called “god the spirit” which is a phrase that does not exist in the Bible and came from the Catholic Church to match the Trinity doctrine they created over 200 years AFTER the Bible was written.