There is singular, dual, and plural in Hebrew.
In Hebrew, plural is 3 or more.
Genesis 1:26 "And God said, Let us make man in our image."
Eloheinu is plural! That is the word for God.
This was said by the One God of the Great Shema.
"Sh'ma Yisra'eil Adonai Eloheinu Adonai echad"
"Hear O Israel, the Lord your God the Lord is One."
He is the Holy One of Israel.
In the beginning was the Word, and the Word was with God, and the word was God.
"I appeared to Abraham, to Isaac, and to Jacob, as God Almighty, but by My name Lord I was not known to them." Exodus 6
But He made a point of sharing it with Moses when Moses bothered to ask. Who shall I say sent me? Exodus 3
"Pour out Your wrath on the nations that do not know You, And on the kingdoms that do not call on Your name."
His name is not Hare Krishna or Hare Rama. His name sets Him apart from false gods.
The burden of the word of the Lord against Israel. Thus says the Lord, who stretches out the heavens, lays the foundation of the earth, and forms the spirit of man within him: “Behold, I will make Jerusalem a cup of drunkenness to all the surrounding peoples, when they lay siege against Judah and Jerusalem. And it shall happen in that day that I will make Jerusalem a very heavy stone for all peoples; all who would heave it away will surely be cut in pieces, though all nations of the earth are gathered against it. In that day,” says the Lord, “I will strike every horse with confusion, and its rider with madness; I will open My eyes on the house of Judah, and will strike every horse of the peoples with blindness. And the governors of Judah shall say in their heart, ‘The inhabitants of Jerusalem are my strength in the Lord of hosts, their God.’ In that day I will make the governors of Judah like a firepan in the woodpile, and like a fiery torch in the sheaves; they shall devour all the surrounding peoples on the right hand and on the left, but Jerusalem shall be inhabited again in her own place—Jerusalem.
“The Lord will save the tents of Judah first, so that the glory of the house of David and the glory of the inhabitants of Jerusalem shall not become greater than that of Judah. In that day the Lord will defend the inhabitants of Jerusalem; the one who is feeble among them in that day shall be like David, and the house of David shall be like God, like the Angel of the Lord before them. It shall be in that day that I will seek to destroy all the nations that come against Jerusalem.
“And I will pour on the house of David and on the inhabitants of Jerusalem the Spirit of grace and supplication; then they will look on Me whom they pierced. Yes, they will mourn for Him as one mourns for his only son, and grieve for Him as one grieves for a firstborn.
When was the Lord, the God of Heaven ever pierced?
As to your claim of the use of allah, that word is used one (1) time in scripture, in Joshua 24:26, and it refers to an oak (tree).
http://biblehub.com/text/joshua/24-26.htm