'Thirteenth' in the Bible

to whom the word of the Lord came during the thirteenth year (627 b.c.) of the reign of Josiah the son of Amon, king of Judah.

“For these twenty-three years—from the thirteenth year of Josiah the son of Amon, king of Judah, even to this day—the word of the Lord has come to me and I have spoken to you over and over again, but you have not listened.