The program that God has for the nation of Israel is entirely different from the program that He has in mind for the church. The promises that God has given to Israel are directed toward the literal, physical Jew of the literal and physical land of Israel. So even though not all who were born to Abraham were of Abraham, and not all who were born to Isaac were of Isaac, and not all who were born to Jacob were of Jacob, neither are those who are of the church, “OF Israel” either. The church or “ekklesia” is a called out assembly that had a starting point (whether you believe began with Peter in Matthew 16, or with Pentecost in Acts 1-2) that inherits spiritual blessings of faith that was fulfilled in Christ through the tribe of Judah, but no part of the church is included in the fulfillment of the promises yet to be consummated in Ephraim and the restoration of the divided land of Israel. The church includes Gentiles that were grafted in to those spiritual promises, and they will be grafted out when the times of the Gentiles are completed (Romans 11:25), and God again turns His attention back to the nation of Israel. The Gentiles were branches, they were not the ROOT. The Gentiles were grafted into an OLIVE TREE (Romans 11:15-24) through Judah (Jeremiah 11:16), Israel is a FIG TREE. Matthew 24:32, Joel 1:7, Hosea 9:10.
Romans 9 has ONE premise in mind, to answer the question about the Jew (“Hath God cast away his people which he foreknew?” Romans 11:2) and our relevance to the future in light of Israel’s rejection of Messiah to which Paul affirms that “NO” He has not cast away the Jew, because God intends to save a remnant of JEWS within a NATION OF JEWS. This is the significance of the illustration Paul uses of the story of God reserving 7,000 Jews OUT OF A POOL OF OTHER JEWS in Romans 11:1-5 (with 1 Kings 19:18, Romans 9:27).
Jacob have I loved, but Esau have I hated” means God chose Jacob OVER Esau it does not mean He literally hated Esau. Jesus said in Luke 14:26 ” If any man come to me, and hate not his father, and mother, and wife, and children, and brethren, and sisters, yea, and his own life also, he cannot be my disciple.” Did He literally mean hate?! No, of course not. Paul was talking about a nation, not a person and of His choosing one above another.