13 The person who speaks in strange tongues, then, must pray for the gift to explain what is said.
14 For if I pray in this way, my spirit prays indeed, but my mind has no part in it.
15 What should I do, then? I will pray with my spirit, but I will pray also with my mind; I will sing with my spirit, but I will sing also with my mind.
16 When you give thanks to God in spirit only, how can ordinary people taking part in the meeting say “Amen” to your prayer of thanksgiving? They have no way of knowing what you are saying.
17 Even if your prayer of thanks to God is quite good, other people are not helped at all.
18 I thank God that I speak in strange tongues much more than any of you.
19 But in church worship I would rather speak five words that can be understood, in order to teach others, than speak thousands of words in strange tongues.