Disclaimer: I am not Jewish and I have no formal training in anything.
I recently came across an excellent explanation of the lost tribes and the centrality of the promise of the recovery of them given in the Torah and the prophets. While the video was produced by a group that would identify as Christian, the video in the first half is about the history and prophetic texts which I would characterize as a "pre-Pauline" or "anti-Pauline" perspective that would, I believe, be in line with Jewish scholarship. (However, please see my disclaimer). Note: I cued up the video to where the important part starts. The second part of the video I do not agree with though some here might.
One very important passage about the resurrection of the dry bones of Israel is explained that it refers to the divine recovery of the lost sheep:
And say to them, So says the Lord God: Behold I will take the children of Israel from among the nations where they have gone, and I will gather them from every side, and I will bring them to their land.
כאוְדַבֵּ֣ר אֲלֵיהֶ֗ם כֹּֽה־אָמַר֘ אֲדֹנָ֣י יֱהֹוִה֒ הִנֵּ֨ה אֲנִ֚י לֹקֵ֙חַ֙ אֶת־בְּנֵ֣י יִשְׂרָאֵ֔ל מִבֵּ֥ין הַגּוֹיִ֖ם אֲשֶׁ֣ר הָֽלְכוּ־שָׁ֑ם וְקִבַּצְתִּ֚י אֹתָם֙ מִסָּבִ֔יב וְהֵֽבֵאתִ֥י אוֹתָ֖ם אֶל־אַדְמָתָֽם:
I should also mention the enigmatic statement by Jesus in regard to his mission that falls into place when this background is understood:
[Mat 15:21-28 NIV] (21) Leaving that place, Jesus withdrew to the region of Tyre and Sidon. (22) A Canaanite woman from that vicinity came to him, crying out, "Lord, Son of David, have mercy on me! My daughter is demon-possessed and suffering terribly." (23) Jesus did not answer a word. So his disciples came to him and urged him, "Send her away, for she keeps crying out after us." (24) He answered, "I was sent only to the lost sheep of Israel." (25) The woman came and knelt before him. "Lord, help me!" she said. (26) He replied, "It is not right to take the children's bread and toss it to the dogs." (27) "Yes it is, Lord," she said. "Even the dogs eat the crumbs that fall from their master's table." (28) Then Jesus said to her, "Woman, you have great faith! Your request is granted." And her daughter was healed at that moment.