What does Isaiah say about the role of preachers?

In Isaiah 62, the prophet describes the role of preachers as watchmen on the walls of Zion, charged with the responsibility to proclaim the Word of God and the message of salvation (Isaiah 62:6). These preachers are called to deliver the gospel continually, ensuring that their voices are not silenced until every last one of God's elect is gathered into the fold. Their task is to declare the grace of God, the completed work of Christ, and to provide spiritual nourishment that leads to growth in grace for the Lord's people. Thus, preaching becomes an integral part of God’s plan for the salvation of His chosen ones.