2009-09-24T15:52:41-05:00 GCI info@gospel.com /feeds/topics/john+mark/ http://biblegateway.com/passage/?search=Acts%2015:37-38&version=NIV 2009-09-24T15:52:41-05:00 Paul and Barnabas disagreed over whether or not John Mark should accompany them on their missionary journeys. Paul felt that John Mark was unreliable, based on past experience working alongside him.