en_tn_lite_do_not_use/jdg/01/11.md

the name of Debir was previously Kiriath Sepher

The author probably wrote this because his readers knew the city as Debir. But at the time Israel attacked it, it was called Kiriath Sepher. AT: "which used to be called Kiriath Sepher" (See: rc://en/ta/man/translate/writing-background)

was previously

"was in times past" or "was at an earlier time"