Beginning to preach

If you read each of the four gospels, Matthew, Mark, Luke and John, you’ll see that, although many events, miracles or parables are mentioned in more than one of them , the sequence of events is not identical in each. For example, in Matthew and Luke ,beginning to preach comes immediately after Jesus’s temptations. Whereas, in Mark, calling the first disciples follows the temptations. I don’t think we need to treat this as a problem, but it is perhaps something to be aware of.