Why did God describe Abraham as the God in the Bible?

World Mission Society Church of God has explained who God's inheritance become through the history of Abraham's Family.  

Why did God describe Abraham as the God in the Bible?

[Luke 16:22] - when the beggar died and angels carried him to Abraham's side
[Luke 16:24] - So he called to him, ' Father Abraham, have pity on me .....

Why is the beggar in Abraham's side after die?

Who can be called Father in Heaven?

We can know understand that Abraham stand for God the Father of Heaven.

Why does World Mission Society Church of God [WMSCOG] mentioned Abraham who represent God?

God planned that who can come to God's inherit through the history of Abraham's Family.

The Bible mentions that Issac was decided by Mother as God's children, Abrahm's inherit     in history of Abraham's Family.

Therefore, the heir of Abraham stands for the heir of God. 

That story is teachings to let us know who inherit can become as God's children.

What is the most conditions to become God's children? God the Mother.

In Israel, only the firstborn has a right to become the heir of the family. 

But it was Issac who was chosen as the heir.

This implies that maternal line was a decisive factor in choosing the heir.

This is a prophecy to show who will become the heir of God.

[Gal 4:26] - "The Jerusalem that is above is free, and she is our Mother."

Please believe in God the Mother as well as Father Ahnsahnghong, and you will become the heir of God and enter the kingdom of heaven.