'Two and thirtieth' in the Bible

Moreover from the time that I was appointed to be their governor in the land of Judah, from the twentieth year even unto the two and thirtieth year of Artaxerxes the king, that is, twelve years, I and my brethren have not eaten the food allowance of the governor.

And during all that time I was not at Jerusalem; for in the two-and-thirtieth year of Artaxerxes king of Babylon I came to the king; and after some time I obtained leave of the king.