New International Version
If then I do not grasp the meaning of what someone is saying, I am a foreigner to the speaker, and the speaker is a foreigner to me.

American Standard Version
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.

Berean Study Bible
If, then, I do not know the meaning of someone’s language, I am a foreigner to the speaker, and he is a foreigner to me.

Douay-Rheims Bible
If then I know not the power of the voice, I shall be to him to whom I speak a barbarian; and he that speaketh, a barbarian to me.

English Revised Version
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.

King James Bible
Therefore if I know not the meaning of the voice, I shall be unto him that speaketh a barbarian, and he that speaketh shall be a barbarian unto me.

World English Bible
If then I don't know the meaning of the sound, I would be to him who speaks a foreigner, and he who speaks would be a foreigner to me.

Young's Literal Translation
if, then, I do not know the power of the voice, I shall be to him who is speaking a foreigner, and he who is speaking, is to me a foreigner;

1 Corinthians 14:11 Additional Translations ...