The eunuch and the worship service.
If you pay attention to Acts 8, you'll notice something that's missing. In this chapter, Philip meets an Ethiopian eunuch who is returning home from Jerusalem and Philip preaches Jesus to him (29-35). Pay close attention to this part:
"Then Philip opened his mouth, and beginning with this Scripture he told him the good news about Jesus. And as they were going along the road they came to some water, and the eunuch said, “See, here is water! What prevents me from being baptized?” And Philip said, “If you believe with all your heart, you may.” And he replied, “I believe that Jesus Christ is the Son of God.” (35-37)
The obvious part is that preaching to a person who is not Christian includes Jesus, and the response is belief and a desire for immediate baptism. But the less-obvious part is the missing bit. IMMEDIATELY after this takes place, Philip vanishes and the Ethiopian goes back to Ethiopia rejoicing (39). Do you know what is missing? Philip never told him how to have a worship service!
And oddly enough, the concept of the "worship service" is missing from the entirety of the New Testament writings. It exists 0 times. Whatcha think?