Preaching is draining work. A faithful Bible preacher labors week after week to carefully and prayerfully craft sermons in a way that are faithful, helpful, and clear.
All the while they see the faces of actual people God has entrusted to their care. They see their victories, their trials, their suffering, and their sin. They hear their fears, doubts, and their prayers. All of this adds to the weight of bringing a word from God that will build them up, encourage them, feed them, and challenge them.