The concept of more than one God would be absolutely inconsistent with the teachings of scripture portions wherein we are taught, loud and clear, that there is only one God. Take a look at some of the following verses:
Thus says the Lord, the King of Israel
and his Redeemer, the Lord of hosts:
“I am the first and I am the last;
besides me there is no god.
You believe that God is one; you do well. Even the demons believe—and shudder!
1 Chronicles 17:20
There is none like you, O Lord, and there is no God besides you, according to all that we have heard with our ears.
remember the former things of old;
for I am God, and there is no other;
I am God, and there is none like me,
(As we read the scriptures, we learn that God is one being that eternally exists as three distinct persons which we know as Trinity.)
The Hebrew term used for God is Elohim, which is plural for Eloah. Elohim is grammatical plural but does not indicate numerical plural. The reason why a plural form is used for God is because the Hebrews wanted to indicate honor or intensity. There is a consistent use of singular adjective or verb with Elohim which indicates that only one God is intended.
In light of the aforementioned considerations, we understand that the three persons of the Trinity are involved and are communicating with each other.