Please take a look at this video: Did the early Christians have sermons? What do you think?

Actually, I watched this video last year. Tom Wadsworth makes many great points. I hope that all those reading this Q&A will make time to watch Wadsworth’s valuable presentation.

Sermons becoming more common in the third century, though Sunday messages were typically quite short. As for the first century, the word was definitely declared, but the question of whether or not assemblies gathered to hear sermons cannot be definitively answered.