Mattityahu 23:6-8

Orthodox Jewish Bible

⁶ and they love the places of honor at the seudot (banquet dinners), and the shuls,

⁷ And the [obsequious] Birkat Shalom greetings in the market places, and to be called by Bnei Adam, Rebbe.

⁸ But you are not to have pretentious titles like Rebbe, for One is your Rebbe [Rebbe Melech HaMoshiach], and all of you are Achim b’Moshiach.