3 Bible Verses about Subdivisions

There was in the time of Herod, the king of Judaea, a priest of the name of Zechariah, belonging to the class of Abijah. He had a wife who was a descendant of Aaron, and her name was Elizabeth.

Now while he was doing priestly duty before God in the prescribed course of his class,

For there is a truth, brethren, not revealed hitherto, of which I do not wish to leave you in ignorance, for fear you should attribute superior wisdom to yourselves--the truth, I mean, that partial blindness has fallen upon Israel until the great mass of the Gentiles have come in;