Luke 9:46-50

Then an argument started among the disciples as to which of them would be the greatest. But Jesus, knowing the thoughts of their hearts, had a little child stand beside Him. And He said to them, “Whoever welcomes this little child in My name welcomes Me, and whoever welcomes Me welcomes the One who sent Me. For whoever is the least among all of you, he is the greatest.” “Master,” said John, “we saw someone driving out demons in Your name, and we tried to stop him, because he does not accompany us.” “Do not stop him,” Jesus replied, “for whoever is not against you is for you.”