Embedded in Jeremiah 23 are several significant warnings for those who would choose to share the Word of God. They seem parallel to James 3:1. A few years ago I was told by a church consultant that a significant percentage of pastors have begun to download sermons from the internet to preach rather than preparing their own messages. Verse 30 seems to speak directly to that practice.
Pastors are under incredible pressure and in most cases unreasonable expectations. The best way a pastor can serve you is to spend much time with his Lord in His Word. Then to share with you not only what he has gleaned from His presence, but also how you can enter there with him. Encourage those who have taken on this mantle. Help them to guard their time in the study. It is critical not only for them but for the health of your community.