Charles Ellicott Commentary 1 Chronicles 6:57

"And to the sons of Aaron they gave the cities of refuge, Hebron; Libnah also with its suburbs, and Jattir, and Eshtemoa with its suburbs," — 1 Chronicles 6:57 (ASV)

They gave the cities of Judah. —The Hebrew text reads, the cities of refuge, Hebron and Libnah, and her pastures. Of the cities mentioned, only Hebron was an asylum for the manslayer. The other cities of refuge were Kedesh-Naphtali, Shechem, Bezer, Ramoth-Gilead, and Golan . Here, our translators have adopted the Hebrew marginal correction of the text (compare to Joshua 21:13, which reads, The manslayer’s city of refuge, Hebron.). The same inaccuracy recurs in 1 Chronicles 6:67, below.

With her suburbs. — With her pastures. The phrase has been omitted after Jattir (Joshua 21:13).