“Fatherhood of God reflects the true picture of our sonship in Him” 

One of the things that we should be happy about as believers is that we can now call God our Father! You dare not try it with the Jews especially in the days of Jesus. There was a man that Jesus healed at Bethesda on the Sabbath day. They, the Jews were ready to persecute Jesus for that act, then He made them to be aware that, is because God(His Father) was working 

John  5:17 But Jesus answered them, My Father worketh hitherto, and I work. 

This we saw made the Jews to be angry because Jesus called God His Father! 

5:18 Therefore the Jews sought the more to kill him, because he not only had broken the sabbath, but SAID ALSO THAT GOD WAS HIS FATHER, making himself equal with God.

So the Bible said “the Jews sought THE MORE TO KILL HIM…” calling God your Father is a crime to them. They have NEVER called God their Father because is not something they must say with their mouth. But, we must rejoice because even now many of us can not even pray without saying  “Father…!” Jesus Himself made this possible by His death and the given of the Holy Ghost

Romans  8:15  For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father.   

Galatians  3:26  For ye are all the children of God by faith in Christ Jesus.

Galatians  4:6  And because ye are sons(children), God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father.

This crying the Jews can not do, but we can now cry Abba Father and help will come to us! Rejoice because God is your own Father!