It is the current and apparently well-founded tradition that Mark derived his information mainly from the discourses of Peter. In his mother's house he would have abundant opportunities of obtaining information from the other apostles and their coadjutors, yet he was "the disciple and interpreter of Peter" specially. As to the time when it was written, the Gospel furnishes us with no definite information. Mark makes no mention of the destruction of Jerusalem, hence it must have been written before that event, and probably about A.D. 63. Return to Easton's Bible Dictionary | Gospel of Mark