Mark 9:38

A Conservative Version

And John answered him, saying, Teacher, we saw a certain man, who does not follow us, casting out demons in thy name, and we forbade him, because he does not follow us.

Cross References

Luke 11:19

And if I cast out the demons by Beelzebub, by whom do your sons cast them out? Because of this they will be your judges.

Mark 9:39

But Jesus said, Forbid him not, for there is no man who will do a mighty work in my name, and will be able quickly to speak evil of me.

Mark 16:17

And these signs will accompany those who believe: In my name they will cast out demons. They will speak in new tongues.