12Even so you, since you are zealous for spiritual gifts, let it be for the edification of the church that you seek to excel.13Therefore let him who speaks in a tongue pray that he may interpret.14For if I pray in a tongue, my spirit prays, but my understanding is unfruitful.15What is the conclusion then? I will pray with the spirit, and I will also pray with the understanding. I will sing with the spirit, and I will also sing with the understanding.16Otherwise, if you bless with the spirit, how will he who occupies the place of the uninformed say Amen at your giving of thanks, since he does not understand what you say?17For you indeed give thanks well, but the other is not edified.