The expression God the Father had never been revealed to anyone. When Moses himself asked God who he was, he heard another name. the Father's name has been revealed to us in the Son, for the name "Son" implies the new name "Father." 31
Catechism number 2784
The free gift of adoption requires on our part continual conversion and new
life. Praying to our Father should develop in us two fundamental dispositions:
First, the desire to become like him: though created in his image, we are
restored to his likeness by grace; and we must respond to this grace.
We must remember . . . and
know that when we call God "our Father" we ought to behave as sons of
God.38
You cannot call the God of all kindness your Father if you preserve a cruel and
inhuman heart; for in this case you no longer have in you the marks of the
heavenly Father's kindness.39
We must contemplate the beauty of the Father without ceasing and adorn our own
souls accordingly.40