The first century jewish followers of Christ are eventually equating Jesus as the physical manifest of God in the old testament. (the fire in the sky in the red sea, the figure in the burning bush, the glory of god, the wisdom of god, the word of the lord etc ).
If an invisible omniscient god appears in a manifestation that is both separate and equal to being god, it is god ? It is all very chicken and egg, if a trees falls in the forest type of question.
I don't care what you believe but what has always struck me as silly about the WTS and how little they know about the basic bible narrative.