Abraham was given the Gospel, there is only one according to the faithful, according to Paqul
He was promised his descendants would possess the Gate (Jesus) of their enemies, the gentiles.
We are taught we become fellow heirs with the children of Israel...……(Israel has a translation you know but not in most Bibles.)
The Master, Jesus Christ, Who is the Good Shepherd, has also taught all that aside fro His original flock, He had anoterh that He was goign to join to it, the gentiles.
They, the Gentiles, enter by the Gate, Jesus, to join and become Israel. It's in the Book.