Have you ever wondered why God was not called our Father in the Old Testament?
Could it be that no writer or prophet of the Old Testament had a true revelation as to who and what God is really like.
The fact is, no one before Jesus revealed to us the character of God! Jesus was the express image of God and came to reveal Him to us. Therefore, any concept you have of who and what God is like that is not revealed through the lens of Jesus is subject to being wrong.
Jesus said; "Father glorify your name." (John 12:28). What is the name of God that Jesus wants us to glorify...FATHER. God is known by other names but Father is the one He wants us to use in our relationship with Him.
Religious people see God as Judge, Jury and Condemner...they need to see God as Jesus saw Him and revealed Him to us...a loving, caring, forgiving, compassionate and understanding FATHER!