Dear Ben, Nice try. The "whole house of Israel" (Ez 37:11) is to be brought to life, not just Judah. It is Israel who remains scattered among the nations (Joel 3:2) It was Judah and Jerusalem who were restored. (Joel 3:1) It is Ephraim and the house of Judah who will "both acknowledge their guilt", and will be revived after "two days" (Hosea 5:15 - Hosea 6:2). And according to my understanding, one is a Jew if their mother is a Jew, kind of up is down and down is up. You are the the son of David if your mother is called "Mary". I think you are a son of David if your father is David. As for Isaiah 56: 1-8, that is for the "foreigner". While Ephraim is scattered among the nations, he remains Ephraim. Isaiah 56:1-8, would be something that Judah would do well to emulate. The Jewish state was called "Israel" to bring about the fulfillment of Psalms 83. All was done for "My name's sake" and has nothing to do with any righteousness of Judah. (Ez 39:7) The "valley of Jehoshaphat" is coming (Joel 3:2) & (Zech 14:2), when the nations will be gathered for judgment. The survivors of Ephraim/Israel, who is as the sands of the sea" (Is 10:22), is not gathered from the nations until that is completed. The remnant of Jacob will be among the nations like a "lion among flocks of sheep" (Micah 5:7-8), and although they will be like the sand of the sea, only a remnant will return. That has not happened. Judah will fight in Jerusalem with the "LORD" (Zech 14:14), and Ephraim will be among the nations.
Ezekiel 39:7 "My holy name I will make known in the midst of My people Israel; and I will not let My holy name be profaned anymore. And the nations will know that I am the LORD, the Holy One in Israel.