Mark 9:38

35 And seating himself, he made the twelve come to him; and he said to them, If any man has the desire to be first, he will be last of all and servant of all.

36 And he took a little child, and put him in the middle of them; and taking him in his arms, he said to them,

37 Whoever will give honour to one such little child in my name, gives honour to me: and whoever gives honour to me, gives honour not to me, but to him who sent me.

38 John said to him, Master, we saw one driving out evil spirits in your name: and we said that he might not, because he is not one of us.

39 But Jesus said, Say not so: for there is no man who will do a great work in my name, and be able at the same time to say evil of me.

40 He who is not against us is for us.

41 Whoever gives you a cup of water, because you are Christ's, truly I say to you, he will in no way be without his reward.