'Three' in the Bible

The words of Jeremiah the son of Hilkiah, [one] of the priests who were in Anathoth in the land of Benjamin,

And after Jehudi had read three or four columns [of the scroll], King Jehoiakim would cut off that portion with a scribe’s knife and throw it into the fire that was in the brazier, until the [entire] scroll was consumed by the fire.

Then the captain of the guard took [as prisoners] Seraiah the chief priest and Zephaniah the second priest and the three doorkeepers.