hmmm...
God is spirit, i.e.; like our thoughts, which are not persons, but immaterial ideas or concepts.
It is really a mater of seoarating the mind from the body, and distinguishing between these ideads that we call thinking from the material body we have learned is under the control of our mind.
If you were born again and could once more experience how you discovered that those wiggling toes were iunder your control and how your hands coukd be made to grasp things just by thinking about asking them to so do, then you coukd understand how a baby knows his body is a mere tool used by the mind.
The mind existed for weeks before recognizing that a body was availkable to it.
Spirit is mental.
John 4:24
God is a Spirit: and they that worship him must worship him in spirit, (in thought), and in (the spirit of) truth.
What are the distinctive characteristics, or marks, of personality? Knowledge, feelings or emotion, and will. Any entity that thinks and feels and wills is a person. Each member of the Godhead does these things.