Mark 9:33-40

33They arrived at Capernaum; and when He was in the house, He asked them, “What were you discussing and arguing about on the road?”

34But they kept quiet, because on the road they had discussed and debated with one another which one [of them] was the greatest.

35Sitting down [to teach], He called the twelve [disciples] and said to them, “If anyone wants to be first, he must be last of all [in importance] and a servant of all.”

36Taking a child, He set him before them; and taking him in His arms, He said to them,

37“Whoever receives and welcomes one child such as this in My name receives Me; and whoever receives Me receives not [only] Me, but Him who sent Me.”

38John said to Him, “Teacher, we saw someone casting out demons in Your name, and we tried to stop him because he was not accompanying us [as Your disciple].”

39But Jesus said, “Do not stop him; for there is no one who will perform a miracle in My name, and be able soon afterward to speak evil of Me.

40For he who is not against us is for us.