[Rutles4Ever]

This is only partially correct: Correct that Jesus explicitly said that He was "in the Father" and the Father was in Him; and Genesis certainly implies a plurality of persons in God, but the Holy Spirit is not applied likewise. Of course the Church Fathers were able to discern in the first century that there was triunity in the Godhead, but the equality among all three persons is not explicit. Further, there were plenty of heresies simmering to a boil in the early days of the Church because these issues simply weren't black and white. It took the Council of Nicaea for the Church Fathers to come together and define infallibly that the Godhead is triune, and of one substance - not just three persons immediately related to each other.

[Quix]

And then Scripture speaks of the 7 Spirits of God.

. . . whatever that refers to.