Matthew 23:8

But be not ye called Rabbi: for one is your Master, even Christ; and all ye are brethren.
— Matthew 23:8, King James Version

In other translations

World English Bible (WEB)

But don't you be called 'Rabbi,' for one is your teacher, the Christ, and all of you are brothers.

American Standard Version (ASV)

But be not ye called Rabbi: for one is your teacher, and all ye are brethren.

Young's Literal Translation (YLT)

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