
"See to it that no one makes a prey of you by philosophy and empty deceit, according to human tradition, according to the elemental spirits of the universe, and not according to Christ.
For in him the whole fulness of deity dwells bodily..."
(Col. 2:8,9...)

Jesus is quoted in the Bible saying that he did not come to do His own will, He was sent (never once implied that He was the sender as well) and that His teachings were not His. (John 6:38, John 7:16, John 8:42) The family relationship is used in describing His relationship with God…Father and Son. Jesus being the son implies a submissive position. The Father having authority over a son would disprove the Trinitarian belief that They are indeed one deity. If this were the case it seems plausible to use a brother to describe the relationship. Quite frankly, I don't see how any circumstantial evidence you show can refute this basic concept.
Passages inside of John 14-17:
Statements with a submission-motif are 17 :
1. In
My Father’s house are many dwelling places; if it were not so, I would have told you; for I go to prepare a place for you. (?)
2. The words that I say to you
I do not speak on My own initiative, but the
Father abiding in Me does His works.
3. And whatever you ask in
My name, that will I do, that the
Father may be glorified in the Son. (?)
4. the
word which you hear is not Mine, but the Father’s
who sent Me.
5. If you loved Me, you would have rejoiced, because
I go to the Father; for the Father is greater than I. 6. but that the world may know that
I love the Father, and as the
Father gave Me commandment, even so I do
7. If you keep My commandments, you will abide in My love; just as
I have kept My Father’s commandments, and abide in His love
8. all things that I have heard from
My Father I have made known to you.
9. But now I am going to
Him who sent Me10. for
the Father Himself loves you, because you have loved Me, and have believed that
I came forth from the Father. 28 “I came forth
from the Father, and have come into the world; I am leaving the world again, and going
to the Father.”
11. even as
Thou gavest Him authority over all mankind, that to all whom Thou hast given Him, He may give eternal life.
12. I manifested Thy name to the men whom
Thou gavest Me out of the world; Thine they were, and
Thou gavest them to Me,
13. Now they have come to know that everything
Thou hast given Me is from Thee; 8 for the words which Thou gavest Me I have given to them; and they received them, and truly understood that
I came forth from Thee, and they believed that Thou didst send Me14. Holy Father, keep them in Thy name, the name which Thou hast given Me, that they may be one, even as We are. (?)
15. “As
Thou didst send Me into the world, I also have sent them into the world. (

)
16. that the world may know that
Thou didst send Me,
17. Father, I desire that they also, whom
Thou hast given Me, be with Me where I am, in order that they may behold My glory, which Thou hast given Me; for Thou didst love Me before the foundation of the world (?)