How do you identify the Sprit of God

[TheWordIsOne]

1 John 4: 2 By this you know the Spirit of God: Every spirit that confesses that Jesus Christ has come in the flesh is of God, and every spirit that does not confess that Jesus Christ has come in the flesh is not of God. And this is the spirit of the Antichrist, which you have heard was coming and is now already in the world.

The Spirit confesses who and how?
The Spirit Identify what?
Every Spirit how many?

 

[TheWordIsOne]

greeting
I see that people read my post, but is the question hard to answer?

 

[TheWordIsOne]

how are we ever going to learn?