Isaiah Chapter 33, Verse 19

19: Thou shalt not see a fierce people, a people of a deeper speech than thou canst perceive; of a stammering tongue, that thou canst not understand.- edit KJV text
19: The shameless people thou shalt not see, the people of profound speech: so that thou canst not understand the eloquence of his tongue, in whom there is no wisdom.— edit Douay text
19: [even] the small and great people? with whom he took not counsel, neither did he understand [a people] of deep speech, so that a despised people should not hear, and there is no understanding to him that hears.— edit LXX text