Your argument fails on two counts:
One, No one in the primitive Christian took the title of Father. No Father Paul, No Father Timothy, no Father John.
Two, No priesthood existed in that Christian congregation. The acting as priest/king was to be in heaven.
Maybe in your 16th century revisionist Christianity and manmade dogma of Sola Scriptura.
The Christian priesthood is a participation in the one priesthood of our Lord Jesus Christ that he bestowed on the apostles, who passed it on to their successors.
1 Corinthians 4:15 New International Version (NIV) 15 Even if you had ten thousand guardians in Christ, you do not have many fathers, for in Christ Jesus I became your father through the gospel.