Paul challenges the Corinthian mindset that they are superior to each other because of the teachers they have for themselves. Using his own example to them, he reminds them the message is more important than the messenger. That message can be eloquent or simple, but it's foundational to start and end all conversations with people about Jesus to actually talk about Jesus.
1. You don't have to know everything to tell someone good reasons to believe Jesus rose from the dead.
2. We all have a story of how God changed our lives. Sharing it effectively should be second nature.
3. The Resurrection of Jesus is the primary argument to the truth of the Bible.