Only use scriptural definitions. Let the scripture speak.
Olive trees are Israel, the House of Judah. Jeremiah 11:16.
Wild olive trees are the ten tribes of the House of Israel. The House of Israel was divorced by God and sent into captivity with the promise to one day become “Children of the living God”. Hosea 1 They were never to be really lost. The Greek actually say, “put away and punished” for a time. Matthew 15:24.
The Latin word Gentile is not found in the Hebrew or Greek text of scripture. One must use the word written by God, Nation. Let the context determine the who. When the House of Israel was divorced they became known as Nations. Many English translations use the word Gentiles.
The prophecy is that the under Christ the House of Judah and the House of Israel would be reunited and venture to a new land, not Palestine. This was to be a land of unwalled villages with a sea on each side with rivers that divide the land into four parts. Ephesians chapter 2 is about this reunification under Christ.
In Ephesians 2 are several key words that scripture defines.
Uncircumcision – The Ten Tribed House of Israel.
Circumcision – The House of Judah.
Alienated from the commonwealth of Israel and Strangers from the covenants – The House of Israel divorced by God losing the right to be called Israel which means “ruling with God”.
Without God – Hosea 1:9
Far off – The House of Israel as they were spread through the world, but mostly in Europe. Amos 9:9.
Near – The House of Judah until after Christ when those left in Palestine began to move West.
The middle wall of partition is the animosity between the two Houses from the time of Rehoboam and Jeroboam. Christ broke this division through His death thus reuniting all of Israel under one head, Christ. Remember according to the Law reconciliation is only for Israel.
Ephesians 2:16-17 “And that he might reconcile both unto God in one body by the cross, having slain the enmity thereby: And came and preached peace to you which were afar off, and to them that were nigh.”
Romans 11:2a ” God hath not cast away his people which he foreknew.”
The conclusion of Romans 11 starts in verse 26. The subject is Israel.
Romans 11:26 “And so all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob”.