10. There are, it may be, so many kinds of voices in the world, and no kind is without signification.
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.
12. So also ye, since ye are zealous of spiritual gifts, seek that ye may abound unto the edifying of the church.
13. Wherefore let him that speaketh in a tongue pray that he may interpret.
14. For if I pray in a tongue, my spirit prayeth, but my understanding is unfruitful.
15. What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.