God the Father

The fathers in the Father in the first heaven. 
Photo: OCP Media Network.
God the Father whom the Jewish prophets wrote so much about was located in Turkey during the time of the five patriarchates. He was the Spirit that resided in the Eastern Orthodox Church, and the Orthodox Christians were the angels (messengers of God) in the presence of God in the first heaven.

The first heaven was the first circle round the clock, whose end was the fall of Constantinople. This circle was the sky directly above the world of the Jews like the ministry of John the Baptist was the next episode after the era of the Old Testament.

God the Father was the God of the ministry of John the Baptist such that Jesus spoke of John the Baptist as the least (lowest) in the Kingdom of Heaven:
But the one who is least in the Kingdom of heaven is greater than John. (Matthew 11:11) "GNT"
What Jesus meant was that the abode of John the Baptist is the lowest or first layer of heaven in the ascension from Jerusalem to the very height.

The lowest layer of heaven in the ascension journey is the height in the return journey. The first layer of heaven (the ministry of John the Baptist) is the lowest or the least layer in the ascension, but the highest or the height in the return. This was why Jesus said John was the greatest.
I assure you that John the Baptist is greater than anyone who has ever lived. (Matthew 11:11) "GNT"
This means that the Eastern Orthodox Church, the abode of God the Father, is the layer of heaven nearest to the earth in the ascension journey, but farthest from the earth in the return journey.

When Jesus said he was going to the Father, he meant he was ascending to create the Church of John the Baptist, the abode of the Father. John the Baptist was born before him, therefore the ministry of John the Baptist must be established in heaven before the creation of the throne of God the Son.

This means that John the Baptist (Elijah) who came before Jesus is coming first before the second coming of Jesus. Jesus confirmed it by saying:
"Elijah is indeed coming first," answered Jesus, "and he will get everything ready." (Matthew 17:11)
Elijah is indeed coming First: John the Baptist is coming first before the second coming of Jesus

John the Baptist came first in the past before the first coming of Jesus, he is coming first in the future before the second coming of Jesus:
But I tell you that Elijah has already come and people did not recognise him, but treated him just as they pleased. (Matthew 17:12) "GNT"
Elijah is John the Baptist:
Then the disciples understood that he was talking to them about John the Baptist. (Matthew 17:13) "GNT"
The death of Jesus on the Cross was his end and the beginning of John the Baptist. Small wonder he told John (representing John the Baptist) to behold his mother (the Church) and his mother to behold his son.
Jesus saw his mother and the disciple he loved standing there; so he said to his mother, "He is your son." (John 19:26) "GNT"
The disciple he loved: John
His mother: Mary (the Church)

Mary was the embodiment of the Church; since the ministry of John the Baptist was the next fruit or product of the Church after the death of Jesus, Jesus described John (John the Baptist) as the son (product) of Mary (the Church).