Charles Ellicott Commentary 1 Chronicles 6:69

"and Aijalon with its suburbs, and Gath-rimmon with its suburbs;" — 1 Chronicles 6:69 (ASV)

Aijalon with her suburbs ... —Joshua 21:23–24, “And out of the tribe of Dan, Eltekeh and her pastures, Gibbethon and her pastures, Aijalon and her pastures, Gath-rimmon and her pastures; four cities.” Clearly there is a lacuna in our text between 1 Chronicles 6:68–69.

It has been supposed that the chronicler omits mention of the tribe of Dan, here and elsewhere, owing to a religious prejudice, because of the illicit form of worship of which the city Dan was the center. It is more likely that such omissions are not chargeable to the chronicler, but either to the imperfection of his sources, or to the carelessness, and perhaps malpractice, of his copyists and editors. (See further Note on 1 Chronicles 7:12.)