Mark 9:33-39

³³Then they came to Capernaum. After he entered the house he asked them, “What were you discussing on the way?”

³⁴But they were silent. For they had been arguing with one with another on the way about who was the greatest.

³⁵Sitting down, he called the twelve together and he said to them, “If anyone wants to be first, he must be last of all and servant of all.”

³⁶He took a little child and placed him in their midst. He took him in his arms and said to them,

³⁷“Whoever receives such a child in my name receives me; and whoever receives me, does not receive me but the one who sent me.”

³⁸John said to him, “Teacher, we saw someone driving out demons in your name and we stopped him, because he does not follow us.”

³⁹But Jesus said, “Do not stop him, for there is no one who will do a mighty work in my name and can soon afterwards say anything bad about me.