'Thirty eighth' in the Bible

Ahab the son of Omri became king over Israel in the thirty-eighth year of Asa king of Judah, and Ahab the son of Omri reigned over Israel in Samaria for twenty-two years.

In the thirty-eighth year of Azariah king of Judah, Zechariah the son of Jeroboam [II] became king over Israel in Samaria for six months.