Matthew 23:7-11

and personal greetings in the marketplaces, and being called Rabbi by the people.

But as for you, do not be called Rabbi; for only One is your Teacher, and you are all brothers and sisters.

And do not call anyone on earth your father; for only One is your Father, He who is in heaven.

And do not be called leaders; for only One is your Leader, that is, Christ.

But the greatest of you shall be your servant.