Here is my diagram to indicate that if one choose to remain stuck with a few verses of the Bible, one can argue for polytheism, tritheism, monotheism, subordinationism, unitarianism, binity, modalism, in the Trinity debate.

But what is required is that the faithful biblical reader needs to sink deeper and do not end with anything between rectangle 1-6, but with the final one on the Trinity view which is a harmonious modication of personal logic in line with the holistic view of Scripture: a Mystery because One God (Scriptural) yet all three persons (Scriptural) are God by themselves (Scriptural). Logic must stop here. EGW is absolutely correct.

Trinity Diagram to show different views that have partitive support.jpeg