And the two disciples heard him speak, and they followed Jesus.…
The Jewish terms of honour for their religious teachers were three. These were, in ascending honour, Rabh, Rabbi, Rabban, the last term being given in cases only of the extremest rarity. As regards the relation of the rabbi to the people, the Sages advised every man: "Chose for thee a Master, and withdraw from doubt;" that is, Chose for yourself a rabbi who can solve the legal and casuistical questions which perplex you. Jesus was not a rabbi in the strict sense; but the title was given to Him in point of courtesy by those who would learn from Him.
Parallel VersesKJV: And the two disciples heard him speak, and they followed Jesus.