Isaiah 28:11
And therefore the LORD also shall speak with lisping lips and with a strange language unto this people, to whom he spake afore of this manner:
1 Corinthians 14:21
In the law it is written, "With other tongues, and with other lips will I speak unto this people, and yet for all that will they not hear me, saith the Lord."
Deuteronomy 28:49
"And the LORD shall bring a nation upon thee from afar, even from the end of the world, as swift as an eagle flyeth: a nation whose tongue thou shalt not understand;
Isaiah 33:19
There shalt thou not see a people of a strange tongue to have so diffused a language, that it may not be understood: neither so strange a speech but it shall be perceived.
Jeremiah 5:15
Lo, I will bring a people upon you from far, O house of Israel, sayeth the LORD; a mighty people, an old people, a people whose speech thou knowest not, neither understandest what they say.