Mattew 23
8. But you are not to be called ‘Rabbi,’ for you have only one Master and you are all brothers.
9 And do not call anyone on earth ‘father,’ for you have one Father, and he is in heaven.
10 Nor are you to be called ‘teacher,’ for you have one Teacher, the Christ.
11 The greatest among you will be your servant.
12 For whoever exalts himself will be humbled, and whoever humbles himself will be exalted