'Thirty ninth' in the Bible

Shallum, the son of Jabesh, became king in the thirty-ninth year of Uzziah, king of Judah; and he was ruling in Samaria for the space of one month.

In the thirty-ninth year of Azariah, king of Judah, Menahem, the son of Gadi, became king over Israel, and was ruling in Samaria for ten years.

In the thirty-ninth year of his rule, Asa had a very bad disease of the feet; but he did not go to the Lord for help in his disease, but to medical men.