Church of St. Peter 4: The final point of the passage
however, is the healing, again quite earthly, which succeeds only with Jesus’ help, 9:14-29. The conclusion Mark draws: Without Jesus, the disciples (the apostles, the Church) are helpless.
In the 3rd section, the special tradition of the Petrine Christians, there are two narratives with the call for reconciliation among the competing original Christian groups, 9:33-41.
The Petrine Christians as the strongest original Christian group are thus exhorted to recognize the other groups as equals.