What did the Gospel of Mark mainly talk about?

A:Mark's Gospel does not contain any of the sayings material that the Gospels of Matthew and Luke obtained from the hypothetical 'Q' document. Scholars say that this indicates simply that Q was unknown to the author of Mark.

Matthew, Luke and John also contain, in each case, material that is unique to that gospel. Scholars do not know the sources of that material, but its omission from Mark was once again a matter of the material having been unknown to the author of the first gospel. This includes the nativity story of Matthew and the nativity story of Luke, and the two genealogies of Jesus, each demonstrating that Joseph was descended from King David and that Jesus was destined for greatness.

Mark originally ended at verse 16:8, with the young man telling the women that Jesus was risen and they fled in terror, telling no one. The original gospel left out the 'Long Ending' (16:9-20) that was added much later, telling of the appearances of the risen Jesus.