Joseph said “Loshon Hakodesh was last spoken as Klal Yisroel’s everyday language before the churban of Bayis Rishon, when Yidden were on a far far higher madreiga than us today. They were far more careful with their speech, what they said and where they said it”.
Joseph, you must have a different set of Niviim than I do. Throuout Niviim, despite repeated punishments and subjugations to other nations, Bnei Yisroel refused to give up their avoda zorah. Shoftim is all about Hashem sending a shofet to rescue Bnei Yisroel after they were once again punished for AZ.