'Fifth' in the Bible

Sometime during the fifth year of the reign of Ahab's son Joram, king of Israel (while Jehoshaphat was still ruling as king of Judah), Jehoshaphat's son Jehoram ascended to the throne of Judah.

On the seventh day of the fifth month, which was during the nineteenth year of King Nebuchadnezzar's reign as king of Babylon, captain of the guard Nebuzaradan, a servant of the king of Babylon, arrived in Jerusalem