'Eighth' in the Bible

In the thirty-eighth year of Azaliah, king of Judah, Zechariah, son of Jeroboam, was king over Israel for six months.

Then Jehoiachin, king of Judah, went out to the king of Babylon, with his mother and his servants and his chiefs and his unsexed servants; and in the eighth year of his rule the king of Babylon took him.