What does the Bible teach about a preacher's dependence on the Lord?

Preachers are called to rely completely on God for their ministry. As Paul states in 2 Corinthians 3:5, ‘Not that we are sufficient of ourselves to think anything as of ourselves; but our sufficiency is of God.’ This principle emphasizes that a preacher's effectiveness is rooted in the Lord's empowerment. The message preached must come from God, as it is the Holy Spirit who enables preachers to speak clearly and boldly. This understanding not only humbles the preacher but also places all glory on God, recognizing that salvation is an act entirely of His grace.