Common hermeneutical mistakes
John H. Walton, who teaches Old Testament at Wheaton College Graduate School, describes five common hermeneutical mistakes of children's curriculum. They are equally applicable to preaching, including this common mistake:
Focus on people rather than God: The Bible is God’s revelation of himself and its message and teaching is largely based on what it tells us about God. This is particularly true of narrative (stories). While we are drawn to observe the people in the stories, we cannot forget that the stories are intended to teach us about God more than about people. If in the end, the final point is “We should/shouldn’t be like X (= some biblical character)” there is probably a problem unless the “X” is Jesus or God. Better is “we can learn through X’s story that God . . .”