As a matter of fact, Sacred Scripture NOT ONCE calls God the Father of unbelievers! As we have just seen, it says quite the opposite! Already the proposition that God is the Father of unbelievers is a word for word contradiction to what has been said by the God-man Jesus Christ Himself.
That "Sacred Scripture calls God the Father of unbelievers" is COMPLETELY FALSE, and in opposition to the following Canon of the actual Council of Trent:
Pope Paul III, Council of Trent, Session 6, Chapter 4, ex cathedra: "By which words, a description of the Justification of the impious is indicated,-as being a translation, from that state wherein man is born a child of the first Adam, to the state of grace, and of the adoption of the sons of God, through the second Adam, Jesus Christ, our Saviour. And this translation, since the promulgation of the Gospel, cannot be effected, without the laver of regeneration, or the desire thereof, as it is written; unless a man be born again of water and the Holy Ghost, he cannot enter into the Kingdom of God.
Thus it is dogmatically defined that the impious are translated from NOT being sons of God, but sons of Adam, to being adopted sons of God by baptism.
Why else, then, would St. John the Evangelist say: "But as many as received him, he gave them power to be MADE the sons of God, to them that believe in his name."? (St. John 1:12)
Who spared not His own Son, but for us,who were not His natural sons,
delivered Him up."