Phil Rosenthal  made this comment . . . .
“What words of wisdom can he impart to others in pursuit of a career such as his? “What worked for me is writing what is specific to your life. This is what sets us apart. You write what you know. I’m proof that it worked.” And along the way, take classes, said Rosenthal. “You cannot learn to be funny, but you can learn the craft, techniques and structure.” 
Think about those three points that Rosenthal made . . . and apply it to preaching!
#1 – Preach what you know.
#2 – Take classes along the way.
#3 – You can learn the craft, techniques, and structure of preaching.
The last two points are what this blog on RhetoricAndHomiletics.org is all about!
1. Phil Rosenthal– “Philip Rosenthal is an American television writer and producer who is the creator, writer, and executive producer of the CBS sitcom Everybody Loves Raymond. In recent years, he has presented food and travel documentaries.” – wikipedia
“‘Phil Rosenthal first gained national recognition by creating the iconic CBS sitcom “Everybody Loves Raymond,” which won 16 Primetime Emmys. A self-described foodie, he has always been an ardent supporter of restaurants and food culture, which led to the creation of the James Beard Award winning PBS documentary series ‘I’ll Have What Phil’s Having.’” — https://www.philrosenthalworld.com/