Exodus 34:10 Look, I am now making a covenant: I shall work such wonders at the head of your whole people as have never been worked in any other country or nation, and all the people around you will see what Yahweh can do, for what I shall do through you will be awe-inspiring.
The Lord had gentiles in mind when He created Israel.
God's intent was to redeem the peoples of the earth to Himself through the Messiah Jesus, Who would come through Israel.
i have heard it said that Israel was supposed to teach the Gentiles about the true God, but they did not - instead in their vanity thinking themselves exclusive and superior - and that this is who the 144,000 will be, Messianic Jews who see and understand and believe the sign of the abducting of the betrothed bride of Christ, who are converted by witnessing the rapture, and who then evangelize the lost world that remains during the tribulation.
i've heard this taught; i don't claim to 'know' eschatology, but make of it what you will
