What does the Bible say about the role of ministers in preaching?

In Luke 9:1-6, we see Jesus summoning the twelve disciples, bestowing upon them power and authority to heal and preach the kingdom of God. This demonstrates that the ministry is not merely an occupation, but a divine calling. The authority given is spiritual in nature; it is rooted in Christ's own power, not in personal skills or charisma. True preaching must emanate from an authorized and empowered minister who has been sent by the Lord, as emphasized by Paul in Romans 10:14-15, where he explains the necessity of senders for true preaching to take place.