1 Corinthians 14:10-12

Darby Translation

¹⁰ There are, it may be, so many kinds of voices in the world, and none of undistinguishable sound.

¹¹ If therefore I do not know the power of the sound, I shall be to him that speaks a barbarian, and he that speaks a barbarian for me.

¹² Thus *ye* also, since ye are desirous of spirits, seek that ye may abound for the edification of the assembly.