The Father is God. Jesus Christ and the Apostles testify of that fact. The scriptures also prove that God the Father is omnipotent, omnipresent, and omniscient.
Jesus Christ the same yesterday, today, and forever.
He was in the Father, and the Father in him, yesterday.
He is in the Father, and the Father in him, today.
And he will be in the Father, and the Father in him, forever.
God the Father has not ceased to be the Son’s source of power and authority.
The Father sent the Son.
The Father kept the Son sinless.
The Father spoke through the Son.
The Father did works through the Son.
The Father raised the Son from the dead.
Your challenge is to prove that the Father is no longer (or pick a period of time if you please) in the Son giving him all power and authority.
When you attempt to slice and dice God......
**Your doctrine falls apart.**
If we take your doctrine to it's logical conclusion, God the Father, stopped being the Father, He became the Son, and is now the Father again.