Within the first section, subordination is defined in this way, "the subordinate, depends upon another for direction," and "Voluntary subordination is always necessary to the establishment of genuine community." There is stress on the fact that the submission is voluntary.
So my first is whether submission is voluntary if it is submission to an authority. In Ephesians 5:21,"submitting to one another out of reverence for Christ." This submission is not a submission to the authority of the other person, but it is voluntary mutual submission out of respect for Christ's authority.
I would like to refine the two positions then. I understand that the Son can voluntarily submit to the Father, but he does it freely and not because he is UNDER God's authority. One possible piece of evidence for this is that these words can be interpreted as speaking of Christ,
- Then I heard the voice of the Lord saying, "Whom shall I send? And who will go for us?"
And I said, "Here am I. Send me!" Is. 6:8
However, the way I interpret the teaching of the eternal subordination of the Son is that the Son is under the authority of the Father. So I will be looking for evidence in the early church fathers, that within the Godhead the Father has eternal authority over the Son.