How do we know that God sends preachers?

In Romans 10:14-15, Paul questions how people can call on the Lord if they have not believed, and how they can believe if they have not heard, emphasizing the necessity of preachers being sent by God. This aligns with God’s sovereign plan, where He orchestrates the preaching of His Gospel through chosen vessels, ensuring that His word reaches those whom He has predestined to believe. Just as Jonah was sent to Nineveh, the sending of preachers is a reflection of God’s unyielding purpose in bringing salvation to His elect, demonstrating His faithfulness in fulfilling His promises.