“Because I did not yet understand the work of the Spirit, I did not realize the powerlessness of human eloquence.
“The Lord always helps me when I preach, provided I have earnestly sought Him in private. A preacher cannot know the hearts of the individuals in the congregation or what they need to hear. But The Lord knows; and if the preacher renounces his own wisdom, he will be assisted by The Lord. But if he is determined to choose a subject in his own wisdom, he should not be surprised when he sees little fruit resulting from his labors.”
From The Autobiography of George Müller