Isaiah 28:11 For with stammering lips and another tongue will he speak to this people. MC VC

Isaiah 33:19 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. MC VC

Jeremiah 5:15 Lo, I will bring a nation upon you from far, O house of Israel, saith the Lord: it is a mighty nation, it is an ancient nation, a nation whose language thou knowest not, neither understandest what they say. MC VC