رِسَالَةُ بُولُسَ ٱلرَّسُولِ ٱلأُولَى إِلَى أَهْلِ كُورِنْثُوسَ 14:11

فَإِنْ كُنْتُ لَا أَعْرِفُ قُوَّةَ ٱللُّغَةِ أَكُونُ عِنْدَ ٱلْمُتَكَلِّمِ أَعْجَمِيًّا، وَٱلْمُتَكَلِّمُ أَعْجَمِيًّا عِنْدِي.

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.