Richard Baxter, in his amazing book The Reformed Pastor, gives this piercing diagnosis of what happens when pride makes the sermon:
And when pride hath made the sermon, it goes with us into the pulpit, it formeth our tone, it animateth us in the delivery, it takes us off from that which may be displeasing, how necessary soever, and setteth us in pursuit of vain applause. In short, the sum of all is this, it maketh men, both in studying and preaching, to seek themselves, and deny God, when they should seek God’s glory, and deny themselves. When they should inquire, What shall I say, and how shall I say it, to please God best, and do most good it makes them ask, What shall I say, and how shall I deliver it, to be thought a learned able preacher, and to be applauded by all that hear me? When the sermon is done, pride goeth home with them, and maketh them more eager to know whether they were applauded, than whether they did prevail for the saving of souls. Were it not for shame, they could find in their hearts to ask people how they liked them, and to draw out their commendations. If they perceive that they are highly thought of, they rejoice, as having attained their end; but if they see that they are considered but weak or common men, they are displeased, as having missed the prize they had in view.Lord, please kill all pride in your chosen heralds. Amen.