In verse 8 we read that to remedy all this "the Lord God will proceed to do a marvelous work among the Gentiles." And He has. The gospel was restored, and the Book of Mormon was translated. It is indeed a marvelous work and a wonder. Verses 11–12 then state that the Lord will bring "about his covenants and his gospel unto those who are of the house of Israel, wherefore, he will bring them again out of captivity, and they shall be gathered together to the lands of their inheritance; and they shall be brought out of obscurity and out of darkness; and they shall know that the Lord is their Savior and their Redeemer, the Mighty One of Israel."
Joseph Smith commented on the extent of these missionary efforts to reach out into all the world: "The Standard of Truth has been erected; no unhallowed hand can stop the work from progressing. … The truth of God will go forth boldly, nobly, and independent, till it has penetrated every continent, visited every clime, swept every country, and sounded in every ear, till the purposes of God shall be accomplished, and the Great Jehovah shall say the work is done."
Book of Mormon Central, "What Role Does the Book of Mormon Play in Missionary Work? (2 Nephi 30:3)," KnoWhy 288 (March 17, 2017).