A biblical sermon is God communicating with humanity. The words are completely human. And yet God is active.
In preaching, God solicits our participation in communication, utilising preachers to draw the world into conversation. No sermon is immaculately conceived; it’s words of a thoroughly human preacher delivered in the name of the same relentlessly redemptive God who took interest in Samuel, Eli and sons, Jonah, Peter, and Mary. At the same time, no sermon is merely human public address; God produces more in the sermon than we can tell.
Preachers Dare, Will Willimon, Abingdon Press, Nashville, 2020, pg 91.