1 Corinthians 14:11
11 If then I do not know the 1meaning of the voice, I will be to him who is speaking a 2barbarian, and he who is speaking a 2abarbarian to me.
112 The Greek word means a foreigner, i.e., a non-Greek, one who does not speak Greek. "Supposed to be originally a descriptive word of those who uttered harsh, rude accents. ... Later, the word took the sense of outlandish or rude" (Vincent).