Matthew 23:8 - 23:12
8 But do not be called Rabbi; for One is your Teacher, and you are all brothers. 9 And do not call anyone on earth your father; for One is your Father, He who is in heaven. 10 Do not be called instructors; for One is your Instructor, that is, Christ. 11 But the greatest among you shall be your servant. 12 And whoever exalts himself shall be humbled; and whoever humbles himself shall be exalted.