Actually, HR, scripture does support a trinity wholeheartedly.
The very chapter that the Oneness Pentecostals like to use to substantiate the practice of speaking in tongues...also speaks of a trinity.
Acts 2:32 This Jesus hath God raised up, whereof we all are witnesses.
33 Therefore being by the right hand of God exalted, and having received of the Father the promise of the Holy Ghost, he hath shed forth this, which ye now see and hear.
God raised up Jesus. It does not say God raised up Himself.
"Being by the right hand of God." Who was by the right hand of God? Jesus.
"Having received of the Father." Who received something of the Father? Jesus. Jesus received something from who? The Father.
"Received...the promise of the Holy Ghost." Jesus received what from God? The promise of the Holy Ghost. Doesn't say the promise of God, or of Jesus.
This man Peter, who the Oneness Pentecostals are so fond of quoting in v. 38 (be baptized in the name of Jesus), acknowledged in these two verses the existence of Jesus separate from God, and the Holy Ghost separate from God.
The only way this can be reconciled is through the realization of one godhead consisting of three persons.
The thing Oneness touched upon, and which Mr. Moon completely avoided, was the word "manifest." As Chemnitz pointed out, the word means "reveal or make known."
In 1 Timothy 3:16, God was revealed (made known) in Christ. In John 14:21, Jesus is revealed (made known) in, and through, us. But the context of the word means more than just revealed or made known. To manifest something, in the context in which it was presented, means to "abide in." Yes, I'm adding more to the Greek word translation than the Strong's. I'm attempting to show something from the scripture itself in the way that the word was used.
In John 14:21, if we obey, Jesus will manifest (reveal, make known, abide/live) in us.
In 1 Timothy 3:16, God was revealed/made known/abided in Jesus.
Thus, the attempt to use 1 Timothy 3:16 as a justification that God lived only in the flesh was invalid--as Mr. Moon conceded with his "oxygen in the bottle" analogy.
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These threads tend to get cut off at ten pages. I'd like to post my final comments about the subject here.
Let me say that something I've stated about MEE before still holds true: She rarely provides scripture, instead responding with "these people don't understand because they haven't had the experience!"
Lots of scripture has been provided showing that there is a distinction between the three persons of the Father, the Son, and the Holy Ghost.
However, neither side is convincing the other of anything.
Let the topic die.