12 So it is with you also. And since you are zealous for what is spiritual, seek the edification of the Church, so that you may abound.
13 For this reason, too, whoever speaks in tongues, let him pray for the interpretation.
14 So, if I pray in tongues, my spirit prays, but my mind is without fruit.
15 What is next? I should pray with the spirit, and also pray with the mind. I should sing psalms with the spirit, and also recite psalms with the mind.
16 Otherwise, if you have blessed only with the spirit, how can someone, in a state of ignorance, add an "Amen" to your blessing? For he does not know what you are saying.
17 In this case, certainly, you give thanks well, but the other person is not edified.
18 I thank my God that I speak in tongues for all of you.