Matthew 23:7-10

23:7 and elaborate greetings ¹  in the marketplaces, and to have people call them ‘Rabbi.’ 23:8 But you are not to be called ‘Rabbi,’ for you have one Teacher and you are all brothers. 23:9 And call no one your ‘father’ on earth, for you have one Father, who is in heaven. 23:10 Nor are you to be called ‘teacher,’ for you have one teacher, the Christ. ² 

[23:7]  ¹ sn There is later Jewish material in the Talmud that spells out such greetings in detail. See H. Windisch, TDNT 1:498.

[23:10]  ² tn Or “Messiah”; both “Christ” (Greek) and “Messiah” (Hebrew and Aramaic) mean “one who has been anointed.”