Isaiah 11:12

“And he shall set up an ensign for the nations, &c.] For the gathering of them, for the calling of the Gentiles, that is, the Lord would do it; he who before is said to set his hand a second time to recover his people, whether among Jews or Gentiles; this he has done in the ministration of the Gospel, in which Christ is lifted up and held forth as the only Saviour of lost sinners, the sole author and glorious Captain of salvation, for them to flee to, and lay hold on; and this he still does, and will continue to do, until all his people are gathered in from the several parts of the world: and shall assemble the outcasts of Israel; so those of his people among the ten tribes, that were…”

“In the first restoration Judah alone was restored, with perhaps some few of Israel (the ten tribes): in the future restoration both are expressly specified (Eze 37:16-19; Jer 3:18). To Israel are ascribed the "outcasts" (masculine); to Judah the "dispersed" (feminine), as the former have been longer and more utterly castaways (though not finally) than the latter (Joh 7:52). The masculine and feminine conjoined express the universality of the restoration. from the four corners of the earth--Hebrew, "wings of the earth."”

“And he shall set up an ensign - See Isaiah 11:10. The Messiah shall stand in view of the nations, as a standard is erected by a military leader. An ensign or standard was usually lifted up on the mountains or on some elevated place (compare Isaiah 18:3); and the meaning here is, that the Messiah would be the conspicuous object around which the nations would rally. And shall assemble - This word, אסף 'âsaph, properly means, to gather, collect, to assemble together, as fruits are collected for preservation Exodus 23:10; to collect a people together Numbers 21:16; to gather or collect gold; 2 Kings 22:4. It may also mean to gather or collect anything for destruction Jeremiah 8:13; and hence,…”

“Nations - All nations, Jews and Gentiles. Out - casts - That were driven out of their own land, into foreign parts. Israel - Of the ten tribes. Isaiah 11:13”

“set up: Isa 11:10, Isa 18:3, Isa 59:19, Isa 62:10; Rev 5:9 shall assemble: Isa 27:13, Isa 43:6, Isa 49:11, Isa 49:12, Isa 56:8; Deu 32:26; Psa 68:22, Psa 147:2; Zep 3:10; Joh 7:35; Jam 1:1 corners: Heb. wings Isaiah 11:13”