Yeshayah 28:11-12

Orthodox Jewish Bible

¹¹ For with stammering safah (lips) and with lashon acheret (another tongue, different tongue) will He speak to HaAm Hazeh.

¹² To whom He said, This is the menuchah (rest) wherewith ye may cause the weary to rest; and this is the refreshing; yet they would not hear.