“Mark wrote first. Mark is the shortest of the three and is the roughest around the edges. Matthew and Luke were both aware of Mark and had a copy of Mark. Matthew and Luke used most of the stories and the basic framework of the Gospel of Mark to write their respective Gospels.

In addition, Matthew and Luke share about 235 verses in common that are not found in Mark. Scholars believe that Matthew and Luke used a second source, a book of Jesus saying that they both had access to. Alternatively, Luke could just be copying from Matthew.”

Great video from highly listenable British scholar, Mark Goodcare.

Dr Mark S. Goodacre is a New Testament scholar and Professor of New Testament and Christian Origins at Duke University. Dr Goodacre earned his BA., M.Phil. and PhD in Theology at the University of Oxford. He is a leading scolar on the Gospels and a practicing Christian.