...Of whom we have much to say, and hard to explain, since you have become dull of hearing. For though by this time you ought to be teachers, you need someone to teach you again the first principles of the oracles of God; and you have come to need milk and not solid food.—Hebrews 5:11-12
Many a preacher would like to challenge the intellectual and thinking capacity of his congregation, but he has been warned about preaching over the people's heads.
I ask, "What are people's heads for? God Almighty gave them those heads and I think they ought to use them!"
As a preacher, I deny that any of the truths of God which I teach and expound are over the heads of the people. I deny it!
My preaching may go right through their heads if there is nothing in there to stop it, but I do not preach truths which are too much for them to comprehend. We ought to begin using our heads. Brother, you ought to take that head of yours, oil it and rub the rust off and begin to use it as God has always expected you would. God expects you to understand and have a grasp of His truth because you need it from day to day. I Call It Heresy!, 145.
"Lord, help me to use my own head first, to be willing to be stretched intellectually by Your Holy Spirit. Then use me to stretch others as well. Amen."