JMNT(i)
38 John began affirming to Him, "Teacher, we saw a certain man (or: someone) casting out (expelling) demons (Hellenistic concept and term: = animistic influences) in Your name, and we began trying to prevent him (or: kept on forbidding him) because he was not making it his habit to be following and accompanying us."
39 Yet Jesus said, "Stop forbidding him and trying to prevent him, for there is no one who will continue doing a powerful work (or: performing an act of ability) upon the [basis and authority of] My Name, and then will proceed in being able to quickly speak badly or unworthily of Me.
40 "You see, the person who is not down on us or against us is for us (or: exists being [a shelter] over us).