Why is preaching important in the sovereign grace theology?

In sovereign grace theology, the act of preaching is considered a divinely ordained means of grace through which God addresses His people. Romans 10:14 asks, 'How then shall they call on Him in whom they have not believed? And how shall they believe in Him of whom they have not heard? And how shall they hear without a preacher?' This underscores the necessity of preaching as a vehicle for God's truth, enabling the Holy Spirit to work in the hearts of the elect. Preachers proclaim the gospel of grace, calling sinners to repentance and faith, and demonstrating how Christ has accomplished redemption. This imperative to preach the gospel reflects God's design to populate Zion with His chosen ones, reinforcing the idea that faith comes through hearing the message of Christ.