There are four gospels in the bible: Matthew, Mark, Luke and John. Three are similar to each other: Matthew, Mark and Luke. One is very different: John.
Why are there four gospels that are so different and so similar in the case of three?
Historically, this is because of cultural areas that differed and shared documents. But in terms of grace and providence, we have events that are so profound we need to be able to look at them with single lights making a blaze of light that we might understand, and trust, and believe.