Well here's a reply: To impose modalist categories on God is completely irrelevant to Who He IS. This would be an instance of a man who is trying to make God of a size that his mind can grasp, according to his own terms. Which is an exercise in futility from the get-go.
For the mind of man cannot even begin to conceive the Immensitas which is God — NOT bound to human categories of nature (space and time) or of thought (to the limit of human reason).
To think otherwise — that man can be the measure of God — leads to untruth, ultimately to the falsification of divine reality, of the spiritual and natural creation.
Well my two cents worth FWIW.
Man is not the measure!
God's Name is I AM.
The way it's worded, yes. God the Father revealed himself by himself in the OT. Jesus revealed himself through incarnation. And the Spirit is said to reveal himself to the faithful.