But you are not to be called rabbi, for you have one teacher, and you are all brothers.
Christ alone is the great Rabbi and Master; He has all power to make laws and demand obedience. If you covet such titles, you claim dominion over men's consciences as these Pharisees do, which belongs to Him alone. All believers stand as brethren in equal relation to God, with no one holding superiority over another.
AI summary
Do not seek or receive titles of distinction that would set one minister above another. Christ is your only Master and Teacher; your parity with one another cannot be broken by rank or degree. The whole spirit of such distinctions breeds pride in some and envy in others, contrary to the simplicity Christ requires.
AI summary
But be not ye called Rabbi; for one is your Master--your Guide, your Teacher.