38John answered him, saying: Master, we saw one casting out devils in thy name, who followeth not us, and we forbade him. 39But Jesus said: Do not forbid him. For there is no man that doth a miracle in my name, and can soon speak ill of me. 40For he that is not against you, is for you. 41For whosoever shall give you to drink a cup of water in my name, because you belong to Christ: amen I say to you, he shall not lose his reward.
http://biblehub.com/drb/mark/9.htm
Douay-Rheims Bible
Good passage. Thanks.