King James Version
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.English Standard Version
but if I do not know the meaning of the language, I will be a foreigner to the speaker and the speaker a foreigner to me.Catholic Public Domain Version
Therefore, if I do not understand the nature of the voice, then I shall be like a foreigner to the one with whom I am speaking; and he who is speaking will be like a foreigner to me