Apostle Paul writes his first letter to the Corinthians 11:3 and says "But I want you to realize that the head of every man is Christ, and the head of the woman is a man, and the head of Christ is God" God is the head of Christ. God is the Father of all. Hence when we pray the kingdom prayer we pray to the Father who is the head of Christ so that we may be Christs (conformed in his image) and the Father may be our head (this is the transformation). We all know that we are becoming like him as we are being renewed into his image, hence praying to the father makes us to start our origination from the Father who art in heaven. The Origination matters a lot as it is the clarification of the seed.
We are all begotten by the Father hence we pray to him. This realization is the code into the true growth into the perfect glory. Once Adam was begotten by the imperfect father and became one body with him (seed of the serpent), hence Apostle Paul spoke of the head of a woman is a man. The man and woman that are married are one body, they have united and have become one, hence as Christ is the head of every man then every man is one body with Christ, and Christ is one body with God, which results to every man having one body with God (this is glory inheritance). Now as we declare and say Our father who art in heaven we pray for the total renewal as Christ so that we may be one body with God the father and the creator, when man understands this then his focus is yoked with the true Father and this kind of person shall never divert or begotten by another Father.
Again, in Mathew 23:8-9 Christ said "But be ye not called Rabbi; for one is your master, even Christ; and all ye brethren. And call no man your father upon the earth; for one is your Father, who is in heaven".
He spoke of one master so as to decree to all human kind on how the wisdom of God is universal and very accurate to all. It does not have difference; it is accurate as it comes from one master so that to produce one perfect man, who is Christ in every man and all men must have the stature of Christ who is one. When all grows from the master Christ then they tend to grow accurately in wisdom, knowledge and understanding. There is no such thing like Christ has given me a different revelation, as revelation is the interpretation of the very accurate image of Christ himself. Thus, as men understand God with different interpretations, they have failed to be free as they have not understood themselves. Having one father who is in heaven as the function of the master is to train you into becoming perfect as the heavenly father is perfect, Father is the origination of what you are and what you shall be completed.
DECREE
“I own and put on the garments given to me by God in the spirit”