Here is how I define the Trinity.
The Father is a Spirit without flesh inhabiting eternity (
John 4:23-24,
Isaiah 57:15).
The Son is the same Spirit come in flesh (
John 4:24,
Ephesians 4:4,
1 John 4:1-3,
2 John 1:7).
The Holy Ghost is the same Spirit as He is released from the physical body of the Son at His crucifixion (
Luke 23:46).
(For God is one Spirit (
Ephesians 4:4,
John 4:24).)
The Holy Ghost being distinct from the Father in that He has lived the human life of Christ and therefore has an experiential understanding of humanity.
The Son being distinct from the Father and the Holy Ghost in that He is come in flesh (while the Father and the Holy Ghost also dwell in the Person of the Son,
Colossians 2:9).
I believe that the Son was begotten in the incarnation (
Luke 1:35); which does not make it impossible that He is pre-existent.
For He ascended to fill all things (
Ephesians 4:10); even to exist outside of time.
For in the Bible codes of Genesis 1 it can be determined that there are ten dimensions in reality. The risen and ascended Son fills all ten. So, He is far above the fourth dimension; which is time. Therefore Jesus exists outside of time.
And because He exists outside of time, His existence extends into eternity past.
Thus, the Father created the worlds through Jesus Christ; since Christ existed in the beginning;
While the beginning of His life (as the Son in flesh) happened at the juncture of
Luke 1:35.
Some have tried to define this theology as not being the Trinity by giving it the label of "Coexistent Modalism".
I think that such is a slander on the doctrine.
I developed this doctrine as an emphasis on the Oneness of God in the Trinity, as a response to mormon theology; which has also infiltrated the minds of some who call themselves Trinitarians; that there are three beings who are God;
i.e. that the Father IS NOT the Son IS NOT the Holy Ghost.
I would declare that they are the same Spirit (
John 4:24,
Ephesians 4:4) and therefore, also, in a specific sense, the same Person.
While they are also three distinct Persons according to the beginning statements of this post.