Matthew 23:7-9

New Revised Standard Version, Anglicised Catholic Edition

⁷ and to be greeted with respect in the market-places, and to have people call them rabbi. ⁸ But you are not to be called rabbi, for you have one teacher, and you are all students.^{[a] 9} And call no one your father on earth, for you have one Father—the one in heaven.