Mark 9:34-37

But they held their peace: for they had disputed one with another on the way, who was the greatest. And he sat down, and called the twelve; and he saith unto them, If any man would be first, he shall be last of all, and servant of all. And he took a little child, and set him in the midst of them: and taking him in his arms, he said unto them, Whosoever shall receive one of such little children in my name, receiveth me: and whosoever receiveth me, receiveth not me, but him that sent me.