I look forward to the day when these words of Isaiah shall be fulfilled:
“Thy watchmen shall lift up the voice; with the voice together shall they sing, for they shall see eye to eye when the Lord shall bring again Zion. Break forth into joy, sing together, ye waste places of Jerusalem; for the Lord hath comforted his people, he hath redeemed Jerusalem. The Lord hath made bare his holy arm in the eyes of all the nations; and all the ends of the earth shall see the salvation of God.” (Isaiah 52:8-10; 3 Nephi 16:18-20)
After reading these passages, from what I understand, the watchmen are the prophets. The prophets speak the mind and the word of the Lord. They watch over those whom they have their stewardship. Moses said that God wished that we were all prophets (Numbers 11:29).
The Lord will comfort His people, even those who are in the worst conditions; and all people on the earth will confess that Jesus is the Christ, the Redeemer of the World.