Mark 9:33-39

³³And he came to Capernaum, and being in the house, he was questioning them, 'What were ye reasoning in the way among yourselves?'

³⁴and they were silent, for with one another they did reason in the way who is greater;

³⁵and having sat down he called the twelve, and he saith to them, 'If any doth will to be first, he shall be last of all, and minister of all.'

³⁶And having taken a child, he set him in the midst of them, and having taken him in his arms, said to them,

³⁷'Whoever may receive one of such children in my name, doth receive me, and whoever may receive me, doth not receive me, but Him who sent me.'

³⁸And John did answer him, saying, 'Teacher, we saw a certain one in thy name casting out demons, who doth not follow us, and we forbade him, because he doth not follow us.'

³⁹And Jesus said, 'Forbid him not, for there is no one who shall do a mighty work in my name, and shall be able readily to speak evil of me: