Matthew 23:8 in the King James Version
But be not ye called Rabbi: for one is your Master, even Christ; and all ye are brethren.
Context
7 the salutations in the marketplaces, and to be called ‘Rabbi, Rabbi’ by men.
8 But you are not to be called ‘Rabbi’, for one is your teacher, the Christ, and all of you are brothers.
9 Call no man on the earth your father, for one is your Father, he who is in heaven.