8But you are not to be called rabbi, for you have one teacher, and you are all students.9And call no one your father on earth, for you have one Father—the one in heaven. 10Nor are you to be called instructors, for you have one instructor, the Messiah.11The greatest among you will be your servant. 12All who exalt themselves will be humbled, and all who humble themselves will be exalted.