Incorrect.
When the two Jewish witnesses appear and prophesy to Israel and the world, they will finally do what Paul couldn't because of the blindness God placed on Israel and that is, to show through the Old Testament writings of Law, Psalms, and Prophets that this Jesus was truly their long-awaited Messiah and not only will "ALL Israel shall be saved (as per covenant - God keeps His Promises) but also Israel will evangelize the world as prophesied in the OT.
God's covenant with Israel and the Shabat/Sabbath is "forever" and so is their covenants.
At the Marriage Supper Israel is there by Covenant (Israel is the Bride and Church of Christ), but Gentiles are there by invitation (Matt. 22.)