For he that speaks in an unknown tongue speaks not unto men, but unto God: for no man understands him; but in the spirit he speaks mysteries.
And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not love, I am nothing.
And these signs shall follow them that believe; In my name shall they cast out demons; they shall speak with new tongues;
And when Paul had laid his hands upon them, the Holy Spirit came on them; and they spoke with tongues, and prophesied.
Come, let us go down, and there confuse their language, that they may not understand one another's speech.
And they knew not that Joseph understood them; for he spoke unto them by an interpreter.
The LORD shall bring a nation against you from afar, from the end of the earth, as swift as the eagle flies; a nation whose tongue you shall not understand;
My mouth shall speak of wisdom; and the meditation of my heart shall be of understanding.
He answered and said unto them, Because it is given unto you to know the mysteries of the kingdom of heaven, but to them it is not given.
And he said unto them, Unto you it is given to know the mystery of the kingdom of God: but unto them that are outside, all these things are done in parables:
And they were all filled with the Holy Spirit, and began to speak with other tongues, as the Spirit gave them utterance.
And they that were with me saw indeed the light, and were afraid; but they heard not the voice of him that spoke to me.
Now to him who is able to establish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began,
But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:
But God has revealed them unto us by his Spirit: for the Spirit searches all things, yea, the deep things of God.
So likewise you, except you utter by the tongue words easy to be understood, how shall it be known what is spoken? for you shall speak into the air.
Else when you shall bless with the spirit, how shall he that occupies the place of the unlearned say Amen at your giving of thanks, seeing he understands not what you said?
I thank my God, I speak with tongues more than you all:
If any man speak in an unknown tongue, let it be by two, or at the most by three, and that in turn; and let one interpret.
Behold, I show you a mystery; We shall not all sleep, but we shall all be changed,
How that by revelation he made known unto me the mystery; (as I wrote before in few words,
And for me, that utterance may be given unto me, that I may open my mouth boldly, to make known the mystery of the gospel,
Even the mystery which has been hid from ages and from generations, but now is made manifest to his saints:
That their hearts might be comforted, being knit together in love, and unto all riches of the full assurance of understanding, to the acknowledgment of the mystery of God, and of the Father, and of Christ;
And without doubt great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.
But in the days of the voice of the seventh angel, when he shall begin to sound, the mystery of God should be finished, as he has declared to his servants the prophets.
Then said Eliakim the son of Hilkiah, and Shebna, and Joah, unto Rab-shakeh, Speak, I pray you, to your servants in the Aramaic language; for we understand it: and talk not with us in the Jews' language in the ears of the people that are on the wall.