That is great, but there are some problems with terms. Gentile is a Latin word that was placed in the scripture to hide something that did not agree with church doctrine at the time. The word in scripture means Nation. Simply Nation, not non-Jew. The context determines the who. Such as Romans 2:14-15, 9-24-25 and Ephesians 2:11 the Nations must be of the Ten Northern tribes. The context requires it. The modern day Jews are not Israel as even their own writings admit, but scripture proves. The way this is taught in most churches leaves God as a promise breaker. The Grafting is for the House of Israel as promised in Hosea and shown accomplished in Ephesians 2. The bible defines its own terms. Examples are: Adoption, glory, covenants, Law, service of God, promises, elect, called, children, firstborn, chosen, royal priesthood, holy nation, peculiar or special treasure, treasure, grapes, olives, even wild olives and sheep. Afar off and those near. Brother and neighbor. “Not a people”, food, and more, but this was my last list. If you would like to study together I have much more that would be helpful.