Anyone who claims God did not fulfill His promises to the Jewish people through the sacrifice of His Son at Calvary, has abandoned what is written in the Bible.
All forms of Dual Covenant Theology, based on race, ignore Paul's warning against genealogies in Titus 3:9.
There is only one people of God in John 10:16.
2Jn 1:7 For many deceivers have gone out into the world who do not confess Jesus Christ as coming in the flesh. This is a deceiver and an antichrist.
2Jn 1:8 Look to yourselves, that we do not lose those things we worked for, but that we may receive a full reward.
2Jn 1:9 Whoever transgresses and does not abide in the doctrine of Christ does not have God. He who abides in the doctrine of Christ has both the Father and the Son.
2Jn 1:10 If anyone comes to you and does not bring this doctrine, do not receive him into your house nor greet him;
2Jn 1:11 for he who greets him shares in his evil deeds.
Any person who willingly rejects God's Son has made the personal decision to go to the lake of fire.
God provided that choice through the sacrifice of His Son.
There is no Plan B, based on race.
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This post is myth. God is going to bring 1/3 of Jacob "through the fire" (of the 70th week) in spite of them ignoring their Messiah, and finally will appear to them when all hope is gone, and then will fulfill His promises to them. For example, the last ten chapters of Ezekiel. Chapter 48 lays out the LAND they will have - MUST more than they have now. These verses in Zec. remain to be fulfilled - but they will be.
Zec 14:
4 And his feet shall stand in that day upon the mount of Olives, which is before Jerusalem on the east, and the mount of Olives shall cleave in the midst thereof toward the east and toward the west, and there shall be a very great valley; and half of the mountain shall remove toward the north, and half of it toward the south.
5 And ye shall flee to the valley of the mountains; for the valley of the mountains shall reach unto Azal: yea, ye shall flee, like as ye fled from before the earthquake in the days of Uzziah king of Judah: and the Lord my God shall come, and all the saints with thee.
6 And it shall come to pass in that day, that the light shall not be clear, nor dark:
7 But it shall be one day which shall be known to the Lord, not day, nor night: but it shall come to pass, that at evening time it shall be light.
8 And it shall be in that day, that living waters shall go out from Jerusalem; half of them toward the former sea, and half of them toward the hinder sea: in summer and in winter shall it be.
9 And the Lord shall be king over all the earth: in that day shall there be one Lord, and his name one.
10 All the land shall be turned as a plain from Geba to Rimmon south of Jerusalem: and it shall be lifted up, and inhabited in her place, from Benjamin's gate unto the place of the first gate, unto the corner gate, and from the tower of Hananeel unto the king's winepresses.
11 And men shall dwell in it, and there shall be no more utter destruction; but Jerusalem shall be safely inhabited.
As far as Race, God CHOSE Abraham, not the other way around.