Cross reference
1 Corinthians 14:11
11 If then I know not the meaning of the voice, I shall be to him that speaketh a barbarian, and he that speaketh will be a barbarian unto me.
Acts 28:2
2 And the barbarians showed us no common kindness; for they kindled a fire, and received us all, because of the present rain, and because of the cold.
Acts 28:4
4 And when the barbarians saw the `venomous' creature hanging from his hand, they said one to another, No doubt this man is a murderer, whom, though he hath escaped from the sea, yet Justice hath not suffered to live.
Romans 1:14
14 I am debtor both to Greeks and to Barbarians, both to the wise and to the foolish.
1 Corinthians 14:21
21 In the law it is written, By men of strange tongues and by the lips of strangers will I speak unto this people; and not even thus will they hear me, saith the Lord.
Colossians 3:11
11 where there cannot be Greek and Jew, circumcision and uncircumcision, barbarian, Scythian, bondman, freeman; but Christ is all, and in all.