'Thirty ninth' in the Bible

Shallum the son of Jabesh became king in the thirty-ninth year of Uzziah (Azariah) king of Judah, and he reigned one month in Samaria.

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

In the thirty-ninth year of his reign Asa developed a disease in his feet. His disease was severe, yet even in his illness he did not seek the Lord, but [relied only on] the physicians.