Then it is your opinion that the majority of the Old Covenant ethnic race who died in unbelief were foreknown of God and therefore were the image of Christ, but died in unbelief anyway??? That's preposterous! According to Paul God did not cast off the people whom He foreknew. Also, according to Paul God did save the remnant of them and cast the rest from the Old Covenant nation away. Paul was quite clear only those of the root (Christ) were foreknown of God and holy, the rest, who were not among those whom God foreknew died in unbelief. There is only Judgment Day left for the man who dies in unbelief.
Hebrews 9:27 (KJV) And as it is appointed unto men once to die, but after this the judgment:
You clearly have no understanding of what the foreknowledge of God means. I'm disappointed in you Jerry, I thought you had better understanding of Scripture then what you are demonstrating in this discussion. Do you really believe Old Covenant Israelites who died in unbelief were predestined to be conformed to the image of Christ, of the called, justified and glorified in Him? Only in your imagination!
Romans 8:29-30 (KJV) For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren. Moreover whom he did predestinate, them he also called: and whom he called, them he also justified: and whom he justified, them he also glorified.
Scripture is very clear whosoever dies in unbelief will stand before God in Judgment and hear, "Depart from Me, I never knew you"!
Yes, Postmillennialism and Amillennialism do have a common understanding of Scripture regarding the Old Covenant nation of Israel. We can read what is plainly recorded in Scripture of how God chose the nation to bring forth the Savior/Messiah of the world. And how God repeatedly warned them that without obedience to Him they would not have eternal life. The failed miserably through pride and unbelief! It has always been, from the beginning of creation, God's plan to begin His Church with a small elect, foreknown remnant from the Old Covenant people that would expand exponentially under the New Covenant through Christ. They would be the True Church, the true people whom God foreknew, and become the "Israel of God" that is no longer but a small remnant, but a great innumerable multitude of people of all nations, and kindreds, and people, and tongues.
Whatever you identify yourself to be makes little difference! It has become quite apparent that you have no real understanding of so much Scripture. This discussion has been disappointing and also enlightening. Thanks for the discussion, have a blessed day.