Matthew 23:9 YLT

⁷  and the salutations in the market-places, and to be called by men, Rabbi, Rabbi.

⁸  'And ye -- ye may not be called Rabbi, for one is your director -- the Christ, and all ye are brethren;

⁹  and ye may not call 'any' your father on the earth, for one is your Father, who is in the heavens,

¹⁰  nor may ye be called directors, for one is your director -- the Christ.

¹¹  And the greater of you shall be your ministrant,