In the Hebrew Bible:
- A son of Jehaleleel (1 Chronicles 4:16).
- A city in the south of the Tribe of Judah (Joshua 15:24), named between Ithnan and Telem.
- A city in the mountains of Judah (Joshua 15:55), south-east of Hebron. Here David hid himself from Saul (1 Samuel 23:19; Psalm 54). The name of Zif is found about four miles south of Hebron, attached to a rounded hill of some 100 feet in height, which is called Tell Zif.
Scholars debate the interpretation of the word Z(Y)F on LMLK seals. It may be a reference to an economic center established at the site south-east of Hebron during the reign of King Hezekiah (circa 700 BC), or it may be a literal votive inscription meaning "battlement", "flowing", "mouthful", "pinnacle", or "supply" (Grena, 2004, pp. 51, 360-2).
- Grena, G.M. (2004). LMLK--A Mystery Belonging to the King vol. 1. Redondo Beach, California: 4000 Years of Writing History. ISBN 0-9748786-0-X.