You are hereHomeBible ReviewFebruary 2004Peter: How a Flawed Disciple Became Jesus’ Successor on Earth Scholars believe that both Luke and Matthew, in writing their gospels, drew on the Gospel of Mark and a now-lost collection of Jesus’ sayings called Q (from the German Quelle, meaning “source”). Join the BAS Library! Already a library member? Log in here. Institution user? Log in with your IP address.