Most Christians today believe that there is only God the Father. The Old testament was recorded by the prophets who were carried along by the Holy Spirit. How did they describe God?

According to the common sense of the world that there is only God the Father, God should have been described in the singular form. Surprisingly enough, the original text of the Bible refers to God as Elohim, the plural form of God. It is not once or twice, but about 2,500 times God is described as Elohim. For example, let's see Genesis 1.
The Old Testament was recorded in Hebrew.(Few part was recorded in Aramaic.) God in Hebrew here was all described as Elohim, which is a plural form of God. Let;s look it up in the Hebrew dictionary.
In Hebrew, El or Eloah means God or god in the singular form.
But Elohim, which was used in the Bible about 2,500 times to describe God, is not the singular form but the plural form.
It is written that Elohim is the plural form of 433. 433 in the dictionary is Eloah that means God. The Hebrew dictionary clearly defines that Elohim is the plural of Eloah. What is the usual meaning of Elohim? It is gods. So Elohim literally means Gods. There is no doubt.
The Bible testifies about God, our Savior (Jn 5:39). The Bible describes God in the plural form even 2,500 times What does it mean? It means God the Father is not the only Savior for us. That;s why God refers to Himself as "us", in the plural form.

Ge 1:26 - Then God (Elohim) said, "Let us make man in our image, in our likeness..."

If God the creator (Elohim) who made man is only God the Father, He should have said, "Let me make on my image, in my likeness/" But God (Elohim) referred to Himself as "us". This is convincing evidence that Elohim that means God is actually the plural form.
God Elohim refers to Himself as "us". Then, who is God Elohim?

Ge 1:27 - So God created man in his won image, in the image of God he created him; male and female he created them.

God created man in His own image and likeness. Then, who were created? Man and woman. This means that God exists as the male image and as the female image. people know God only as the male image and called Him Father. Then, what should we call God of the female image? Of course, she is Mother. In other words, there is God the Mother as well as God the Father. That is why God referred to Himself as "us".
Therefore, God Elohim, who is the Creator and our Savior, is God the Father and God the Mother.