Azubah
Azubah is the name of two women in the Hebrew narrative: the wife of Caleb son of Hezron in the Judahite genealogies of Chronicles, and the mother of Jehoshaphat king of Judah. The two figures live in different historical layers — the first inside the tribal genealogy of Judah, the second inside the regnal records of the divided monarchy — and share only the name itself.
Wife of Caleb
In the Judah genealogy of 1 Chronicles, Azubah appears as the wife of Caleb son of Hezron. The notice records both her offspring and her death: "And Caleb the son of Hezron begot [children] of Azubah [his] wife, and of Jerioth; and these were her sons: Jesher, and Shobab, and Ardon. And Azubah died, and Caleb took to him Ephrath, who bore him Hur" (1Ch 2:18-19). The bracketed insertions reflect UPDV's resolution of the implicit object and possessive in the underlying text. Three sons are named — Jesher, Shobab, and Ardon — before the genealogy moves past her death to Caleb's second wife Ephrath and the line that produces Hur.
Mother of Jehoshaphat
A second Azubah appears in the regnal formulae for Jehoshaphat, fourth king of the Davidic line after the division of the kingdom. The Kings notice records: "Jehoshaphat was thirty and five years old when he began to reign; and he reigned twenty and five years in Jerusalem. And his mother's name was Azubah the daughter of Shilhi" (1Ki 22:42). The accession itself is dated to "the fourth year of Ahab king of Israel" (1Ki 22:41). The Chronicler preserves the same maternal datum in nearly identical wording: "and his mother's name was Azubah the daughter of Shilhi" (2Ch 20:31). Both notices identify her by patronym — daughter of Shilhi — without further biographical material.