When our Bible speaks of the Father, Son, and Holy Ghost Trinity, it is clearly setting forth the Father as being Father to the Son and the Son as being Son to the Father. It is not referring to the Father as being Father to the Human race nor is it referring to the Son as being Son to the Human race in these particular instances.
Matthew 28:19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
I agree that there are places where 'Son of Man' is the context:
Luke 9:26 For whosoever shall be ashamed of me and of my words, of him shall the Son of man be ashamed, when he shall come in his own glory, and [in his] Father's, and of the holy angels.
And where The Father means 'Our Father':
Luke 11:2 And he said unto them, When ye pray, say, Our Father which art in heaven, Hallowed be thy name. Thy kingdom come. Thy will be done, as in heaven, so in earth.