Why do people want to make it so mysterious, when it says to keep it simple. Jesus said the Father is the only true God. Jesus said that we have the very same God and the very same Father that He does. Paul backed Jesus up with for us there is only one God the Father.
2 Cor 11:3
3 But I fear, lest somehow, as the serpent deceived Eve by his craftiness, so your minds may be corrupted from the simplicity that is in Christ.
(NKJ)
John 17:1-3
1 Jesus spoke these words, lifted up His eyes to heaven, and said: "Father, the hour has come. Glorify Your Son, that Your Son also may glorify You,
2 "as You have given Him authority over all flesh, that He should give eternal life to as many as You have given Him.
3 "And this is eternal life, that they may know You, the only true God, and Jesus Christ whom You have sent.
(NKJ)
John 20:17
17 Jesus said to her, "Do not cling to Me, for I have not yet ascended to My Father; but go to My brethren and say to them, 'I am ascending to My Father and your Father, and to My God and your God.'"
(NKJ)
1 Cor 8:5-7
5 For even if there are so-called gods, whether in heaven or on earth (as there are many gods and many lords),
6 yet for us there is one God, the Father, of whom are all things, and we for Him; and one Lord Jesus Christ, through whom are all things, and through whom we live.
7 However, there is not in everyone that knowledge; for some, with consciousness of the idol, until now eat it as a thing offered to an idol; and their conscience, being weak, is defiled.
(NKJ)