To continue, PluniaZ is concerned with a type of (heretical) theology that proposes the eternal economic subordination of the Son. A proponent of that theology might say:
"This truth about the Trinity has sometimes been summarized in the phrase “ontological equality but economic subordination,” where the word ontological means “being.” If we do not have ontological equality, not all the persons are fully God. But if we do not have economic subordination, then there is no inherent difference in the way the three persons relate to one another, and consequently we do not have the three distinct persons existing as Father, Son, and Holy Spirit for all eternity. For example, if the Son is not eternally subordinate to the Father in role, then the Father is not eternally “Father” and the Son is not eternally “Son.” This would mean that the Trinity has not eternally existed.
This is why the idea of eternal equality in being but subordination in role has been essential to the church’s doctrine of the Trinity since it was first affirmed in the Nicene Creed, which said that the Son was “begotten of the Father before all ages” and that the Holy Spirit “proceeds from the Father and the Son.”
And I would stress that the term subordination in a relationship goes beyond the unbegotten and begotten distinction.