² For those who speak in a tongue do not speak to other people but to God, for no one understands them, since they are speaking mysteries in the Spirit.^(A)

¹⁷ And these signs will accompany those who believe: by using my name they will cast out demons; they will speak in new tongues;

⁴⁶ for they heard them speaking in tongues and extolling God. Then Peter said,

⁶ When Paul had laid his hands on them, the Holy Spirit came upon them, and they spoke in tongues and prophesied,^(A)

⁴ All of them were filled with the Holy Spirit and began to speak in other languages, as the Spirit gave them ability.^(A)

⁵ Now there were devout Jews from every people under heaven living in Jerusalem. ⁶ And at this sound the crowd gathered and was bewildered, because each one heard them speaking in the native language of each. ⁷ Amazed and astonished, they asked, “Are not all these who are speaking Galileans? ⁸ And how is it that we hear, each of us, in our own native language? ⁹ Parthians, Medes, Elamites, and residents of Mesopotamia, Judea and Cappadocia, Pontus and Asia, ¹⁰ Phrygia and Pamphylia, Egypt and the parts of Libya belonging to Cyrene, and visitors from Rome, both Jews and proselytes, ¹¹ Cretans and Arabs—in our own languages we hear them speaking about God’s deeds of power.”

² And if I have prophetic powers and understand all mysteries and all knowledge and if I have all faith so as to remove mountains but do not have love, I am nothing.^(A)

⁹ So with yourselves: If in a tongue you utter speech that is not intelligible, how will anyone know what is being said? For you will be speaking into the air.^{(A) 10} There are doubtless many different kinds of sounds in the world, and nothing is without sound. ¹¹ If then I do not know the meaning of a sound, I will be a foreigner to the speaker and the speaker a foreigner to me.^(B)

¹⁰ God has revealed to us through the Spirit, for the Spirit searches everything, even the depths of God.^(A)

²⁶ the mystery that has been hidden throughout the ages and generations but has now been revealed to his saints.^{(A) 27} To them God chose to make known how great among the gentiles are the riches of the glory of this mystery, which is Christ in you, the hope of glory.^(B)

³ and how the mystery was made known to me by revelation, as I wrote above in a few words,^{[a](A) 4} a reading of which will enable you to perceive my understanding of the mystery of Christ.^{(B) 5} In former generations this mystery^[b] was not made known to humankind, as it has now been revealed to his holy apostles and prophets by the Spirit:^{(C) 6} that is, the gentiles have become fellow heirs, members of the same body, and sharers in the promise in Christ Jesus through the gospel.^(D)

⁷ Of this gospel I have become a servant according to the gift of God’s grace that was given me by the working of his power. ⁸ Although I am the very least of all the saints, this grace was given to me to bring to the gentiles the news of the boundless riches of Christ^{(E) 9} and to make everyone see^[c] what is the plan of the mystery hidden for ages in^[d] God, who created all things,^(F)