And John answered and said, Master
 The Syriac and Persic versions read, "our Master": 
 we saw one casting out devils in thy name, and we forbad him;
 (See Gill on Mark 9:38) 
 Because he followeth not with us;
 the Syriac, Persic, and Ethiopic versions read, "because he followeth not thee with us"; did not join in company with them, and follow Christ along with them, and as they did.