Many nations shall be joined (shall join themselves) to the Lord; "shall fly for refuge unto the Lord". My people; unto me for a people; Septuagint, "shall be unto him for a people" (comp. Zechariah 8:20).
No mere conversion of individuals among the heathen satisfies this promise. Whole nations shall become the Lord's people. That title shall be shared with Israel by countless multitudes (comp, Isaiah 2:2, Isaiah 2:3; Isaiah 11:10; Micah 4:2; Zephaniah 2:11), I will dwell, etc.
The promise of Zechariah 2:10 is repeated for assurance' sake. The LXX. has, "And they shall dwell in the midst of thee." Thou shalt know (as Zechariah 2:9).