God Refers to Himself as "US"
We can see the plural form of God in the Bible, where He refers to Himself as "us."
Gen 1:26 God said, "Let us make man in our image, in our likeness..."
Let's see this reference book.
The enigmatic "we" of Genesis
(Myteries of the Bible, Reader's Digest Association Inc., p.21)
THE CLIMAX of Genesis 1 and the heart of its mystery comes in the description of the creation of adam, the Hebrew term meaning "human being" or "humanity." God had said, "Let there be light." But now, God does not say, "Let there be man." Instead he says, "Let us make man (adam) in our image, after our likeness" (Gen 1:26)... This passage has long been a puzzle for interpreters of the Bible.
If God the Creator is God the Father alone, He should have said,
"Let me make man in my image, in my likeness."
But God said,"Let us..."
This proves that there is not only God the Father.
Why did God refer to Himself as "us"?
When we see in Gen 1:27, it says,
So God created man in his own image, in the image of God he created him; male and female he created them."
This means that God exists as the male image and as the female image.
That's why God said, "Let us make man."
Therefore, according to the teachings of the Bible, we must believe in not only God the Father but also God the Mother.