Luke 9:46-50

46Now an argument started among the disciples as to which of them might be the greatest.

47But when Jesus discerned their innermost thoughts, he took a child, had him stand by his side,

48and said to them, “Whoever welcomes this child in my name welcomes me, and whoever welcomes me welcomes the one who sent me, for the one who is least among you all is the one who is great.”

49John answered, “Master, we saw someone casting out demons in your name, and we tried to stop him because he is not a disciple along with us.”

50But Jesus said to him, “Do not stop him, for whoever is not against you is for you.”