Thankfully preaching is not just you and your listeners. It’s so much bigger than that. Your preparation is critical stewardship before God. Their openness to listen is also a vital stewardship of their opportunity. But there is also the Holy Spirit:
The Spirit of God is at work long before the sermon passes through the air. The work of God in the people of God is constant. Our privilege is to be a tool in that greater work. So long before we stand to preach, the Spirit of God has already been working in peoples’ lives – drawing them to Christ, convicting them of sin, disciplining believers, orchestrating life’s circumstances and so on.
The Holy Spirit is critical in the delivery of the sermon. The older writers referred to the “unction.” Today we might refer to the “anointing.” The fact is that true preaching goes beyond our preparation and ability (both of which require of us good stewardship), to have a contagious vibrancy that can only be credited to the delivery taking place in the power of the Spirit. This is not something that can be stirred up by our own pre-delivery ritual, but can surely be harmed by our character, motives, attitude – by sin.
The work of the Spirit continues after the sermon is finished. Thankfully it is not our responsibility to follow up on every individual in minute detail, convicting, encouraging, filling, urging, etc. When we lay our effort before the throne, God’s work presses on. Praise the Lord.