Since right from Chapter 1 verse 1 of The Bible God has revealed Himself as a plurality?

I'm with you, but cultists will never agree. They insist that The Bible must clearly say in one verse that God is triune in nature, or they will refuse to believe it. They won't even allow you to explain how the doctrine is derived from The Bible, and they won't hear how it requires a balanced view of Scripture and how it is derived from more than one stream of evidence. They can't even get their heads around John 1:1 much less understand how the deity of Christ could have anything to do with the trinity.

Elohim is plural in form as a hint that the concept of God is more complex than simply being one single God, but the tetragrammaton and Adonai are both singular. The position of the E document at the start of Genesis is quite arbitrary: the later account of creation could have been put there too. The Bible speaks with one voice but is not a monolithic work.

Even if we refuse the plurality of the word Elohim, there are enough references to God being in three Persons - Father, Son, and Holy Spirit.

The most obvious manifestation of the Three was at the baptism of Jesus.

The following verse is accepted by most commentators to be a reference to the Trinity where the Messiah says - "Come near to Me, hear this: I have not spoken in secret from the beginning; From the time that it was, I was there. And now the Lord GOD and His Spirit Have sent Me." (Isaiah 48:16)

Where does he represent himself as a plurality please? Elohim (אֱלֹהִ֔ים) is a grammatically singular or plural noun for "god" or "gods" in both modern and ancient Hebrew language. So you choose to believe it is being used in the plural. With ALL due respect, that raises new questions doesn't it? First, if it's in the plural, then it refers to MORE THAN ONE GOD, not three God's in one. Which then would mean the Jews were polytheistic. This fact is denied by supporters of the Trinity teaching. Then there's the fact that one God would be asking another to glorify him. One God would not be acting of his own initiative but would wait on instructions for another God. One God would be dead and await resurrection by another God. One God would not know things another God does. And one God would be denying the very definition of the Trinity by saying he is a lesser God (the Father is greater than I am).

The terms used by the early church may be inadequate to describe God, but the general understanding of the TRINITY, of ONE GOD yet three persons, is Biblical, for indeed the THREE are ONE, indivisible.

Look closely at these Bible verses:

When Christ came to this world, He came "forth from God".

John 16.27,28

"For the Father himself loveth you, because ye have loved me, and have believed that I came out from God.

I came forth from the Father, and am come into the world: again, I leave the world, and go to the Father."

John 10.38

But if I do, though ye believe not me, believe the works: that you may know, and believe, that the Father is in me, and I in him.

The Spirit also comes "forth from God".

John 15.26

But when the Comforter is come, whom I will send unto you from the Father, even the Spirit of truth, which proceedeth from the Father,

And when the Holy Spirit comes, Christ and God the Father are also present.

John 14.16

And I will pray the Father, and he shall give you another Comforter,

John 14.18 I will not leave you comfortless: I will come to you.

John 14.23

Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him.

Isaiah 9.6

For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace.

John 14.26 "But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you."

As you read through the above texts you should notice that when ONE member of the Godhead comes, ALL THREE ARE PRESENT.

John 14:6

SDA

Peace. The honest unpretentious candor of the holy Writings, seem to be 'effortless pickings' for the stressed and misled, as Peter alluded to as under: 15Furthermore, don't forget the patience of our Lord as salvation, just as our cherished brother Paul consistent with the wisdom given him also wrote YOU, 16speaking about these matters as he does also in all [his] letters. In them, nonetheless, are some matters tough to appreciate, which the untaught and unsteady are twisting, as [they do] additionally the relaxation of the Scriptures, to their own destruction. @ 2 Peter: three If Jesus the Christ, the One sent [John 3:sixteen; 6:38; 8:42; 10:33- 36, was the King of Eternity, YHWH/ JEHOVAH, then the complete Bible could be invalidated. Hearken to what Jesus says: 34Jesus answered them: “Is it not written for your legislation, ‘I mentioned: “you're gods”’? 35If he known as ‘gods’ those in opposition to whom the phrase of God got here, and yet the Scripture are not able to be nullified, 36do YOU say to me whom the father sanctified and dispatched into the arena, ‘You blaspheme,’ on account that I said, i'm God’s Son? 37If i'm not doing the works of my Father, don't believe me. John 10, examine with Psalm 82:1, 6. 15Therefore the Jews fell to questioning, announcing: “How does this man have a expertise of letters, when he has not studied at the colleges?” 16Jesus, in turn, answered them and mentioned: “What I instruct will not be mine, however belongs to him that sent me. 17If someone wants to do His will, he's going to know regarding the instructing whether it's from God or I communicate of my possess originality. 18He that speaks of his possess originality is looking for his possess glory; however he that seeks the glory of him that despatched him, this one is true, and there's no unrighteousness in him. John 7 16Jesus stated to her: “Mary!” Upon turning around, she said to him, in Hebrew: “Rab·bo´ni!” (which means “teacher!”) 17Jesus mentioned to her: “stop clinging to me. For i have now not yet ascended to the daddy. However be for your approach to my brothers and say to them, ‘i'm ascending to my Father and YOUR Father and to my God and YOUR God.’” John 20.

You mean that book that has been rewritten hundreds of times? The trinity concept was a deliberate plan to appeal to polytheist cultures like the Egyptians, Greeks, Babylonians and Romans.

Royalty always refers to themselves "as a plurality". So what? Does that also prove that the Queen of England is multiple persons?

I suggest you purchase some logic and read more that one book.

Compare how many references there are to a plural god to how many times God mentions being "one God" "the alpha and omega" "No other gods" etc.

Many of the plural references can be dismissed as God referring to 'himself and his angels'.

Your Rabbi Joachi stands alone amid many others who disagree.

There is no evidence whatsoever any gods exist, which makes belief in a specific god (or gods), well, insane.