Homiletics – Homiletics (Ancient Greek: ὁμιλητικός[1] homilētikós, from homilos, “assembled crowd, throng”[2]), in religion, is the application of the general principles of rhetoric to the specific art of public preaching.[1] One who practices or studies homiletics may be called a homilist, or more colloquially a preacher.

Homiletics – Wikipedia

https://en.wikipedia.org/wiki/Homiletics

Homiletics (Ancient Greek: ὁμιλητικός[1] homilētikós, from homilos, “assembled crowd, throng”[2]),
in religion, is the application of the general principles of rhetoric to the specific art of public preaching.[1] One who practices or studies homiletics may be called a homilist, or more colloquially a preacher.