kjv@1Corinthians:14:13@ Wherefore let him that speaketh in an unknown tongue pray that he may interpret.
kjv@1Corinthians:14:14@ For if I pray in an unknown tongue, my spirit prayeth, but my understanding is unfruitful.
kjv@1Corinthians:14:15@ 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.