Midrash sur Chroniques 1 2:24

Bezalel was called by six names. From his genealogy listed in the Book of Chronicles you learn that he was descended from the tribe of Judah, as is said: And the sons of Judah: Perez, Hezron, and Carmi, and Hur, and Shobal. And Reaiah the son of Shobal begot Jahath, etc. (ibid. 4:1–2). Now Hezron was in fact the grandson of Judah, as it is said: And the sons of Perez were Hezron and Hamul (Gen. 46:12), and it is also written: And after that Hezron was dead in Caleb-ephrath, then Abiah Hezron’s wife bore him Ashhur (I Chron. 2:24). Can a man die within another man that it should say: And after that Hezron died in Caleb? This must mean that after Hezron died Caleb came to Ephrath, who was in fact Miriam, through whom Israel increased and multiplied, as it is written: And Azubah died, and Caleb took unto him Ephrath, who bore him Hur. And Hur begot Uri, and Uri begot Bezalel (ibid., vv. 19–20). And Reaiah the son of Shobal begot Jahath; and Jahath begot Ahumai, and Lahad (ibid. 4:2).

Another explanation. “See, I have called by name Bezalel the son of Uri …” (Shemot 31:2) This is one of the seven people called by multiple names. There are those that were called by four names, which is Eliyahu, Bezalel had six, Yehoshua six, Moshe seven, Mordecai two, Daniel five, Hananiah, Mishael and Azariah had four. Eliyahu had four: R’ Elazar ben Padat said ‘Eliyahu was from Jerusalem and was among those who sat in the Court of Hewn Stones. He was from the city of Yehudah and his portion was in two tribal lands – five in Benyamin, as it says “And Zelah, Eleph, and the Jebusite, which is Jerusalem…” (Yehoshua 18:28) and three in Yehudah, as it says “Zenan, and Hadashah, and Migdal-gad.”