Doing my daily Bible reading, I saw Paul describe a Christ-led support group in Romans 1:11-12. He wrote: “I long to see you so that I may impart to you some spiritual gift to make you strong—that is, that you and I may be mutually encouraged by each other’s faith.”
1) Paul expressed a desire to “impart some spiritual gift” (not to present a systematic teaching); and
2) He desired to engage in mutual encouragement (community) not to be a 1-man authority. More @ this link.
There’s no syllabus for salvation.