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 2782
We can adore the Father because he has caused us to be reborn to his life by adopting us as his children in his only Son: by Baptism, he incorporates us into the Body of his Christ; through the anointing of his Spirit who flows from the head to the members, he makes us other "Christs."
God, indeed, who has
predestined us to adoption as his sons, has conformed us to the glorious Body
of Christ. So then you who have become sharers in Christ are appropriately
called "Christs."34
The new man, reborn and restored to his God by grace, says first of all,
"Father!" because he has now begun to be a son.35