"Prayer must carry on our work, as well as preaching. He does not preach heartily to his people who does not pray for them. If we do not prevail with God to give them repentance and faith, we are not likely to prevail with them to repent and believe. Paul gives us frequently his example of praying night and day for his hearers." -- Richard Baxter
For power in the pulpit, pastors must devote at least as much time to prayer as sermon preparation.
The first step in preparing sermons that speak deeply and directly to the hearers' hearts is the preparation of the preacher.