'Division' in the Bible

In the days of Herod [the Great], king of Judea, there was a certain priest whose name was Zacharias, of the division of Abijah. His wife was a descendant of Aaron [the first high priest of Israel], and her name was Elizabeth.

Now it happened while Zacharias was serving as priest before God in the appointed order of his priestly division,

Do you suppose that I came to grant peace on earth? No, I tell you, but rather division [between believers and unbelievers];