Feel free to address the folllowing:
One God. . .in three distinct persons:
the Son being subject to the Father, for the Son is sent by the Father (Jn 5:23, 36, 43),
the Spirit being subject to the Father, for the Spirit is sent by the Father in the Son's name (Jn 14:26), and
the Spirit being subject to the Son as well as the Father, for the Spirit is sent by the Son as well as the Father (Jn 15:26, 16:7, 14:26, Ac 2:33).
One doesn't send oneself, one sends another person.
It is Jesus in the above who shows three distinct persons in disclosing the mystery of the Trininty, which mystery is the heart of Christian faith in God.
And that mystery is three distinct persons in one God--the Son doing the will of the Father, and the Spirit doing the will of the Father and the Son.