I keep asking this question on different forums, but have yet to get an answer.
The only benefit I have seen is to be accepted by those who believe in trinity.
In other words you are not a true Christian if you are not trinitarian.
It's not a salvation issue. So what do you attain from being a trinitarian?
My take on this subject, Ronald
God has 3 administrative functions in his creation.
1. The Fathers administration as Creator = all there is including mankind and it's lost estate.
2. The Fathers will in the Son'r administration = to redeem that which was lost in the firsts creative process.
3. The Fathers Spirit, as the Son Spirit and as the Holy Spirit, is the Father's promised comforter to all of His redeemed souls.
1. The Fathers administration as Creator.
The creation of "as one of us" meant for the souls to be independent entities gods , as "one of us".
The resultant consequence, for the created souls, meant a separation from God. Termed....death of the soul.
There were no other options.
The Fathers plan then was to redeem His own creation in the form of a created being (Jesus being same stock as Adam) and bring salvation to His creative souls via the Fathers Spirit indwelling in Jesus.
That way humanity, in the flesh, would find a redemptive avenue of the salvation of its own soul.
2. The Fathers will in the Son'r administration.
Jesus was here to do the Father's will. The express image of the Father's desire.
The Father's delight in sacrificing one soul verses the whole of humanities souls. (One for all)
Jesus usurer-ed in a "new creation". Not again a creation of flesh, but by His own resurrection, but a new spirit in which and by which mankind could be redeemed.
Therefore, Jesus the second person of the Father's administration was fully invested with the Father's power of attorney, if you will, to have the authority to perform the redemption task.
That makes Jesus God in the flesh.
3. The Fathers Spirit, as the Son Spirit and as the Holy Spirit, is as one Spirit, the Father's Holy Spirit ; the promised comforter to all of His redeemed souls.
Jesus becomes the Father in Heaven while His Spirit, as the Fathers, comes to us via the spirit indwelling, renewing our dead spirits to new life again.
The comforter will be with all of us for the duration of the existence of humanity.
All that can be extrapolated piecing together the puzzle laid out in the bible.
Hope this helps.
Blessings, AJ