Not to many people of foreign speech and of a hard language, whose words you can not understand. Surely, had I sent you to them, they would have hearkened unto you.
And the peace of God, which passes all understanding, shall keep your hearts and minds through Christ Jesus.
And to know the love of Christ, which passes knowledge, that you might be filled with all the fullness of God.
O the depth of the riches both of the wisdom and knowledge of God! how unsearchable are his judgments, and his ways past finding out!
Great is the LORD, and greatly to be praised; and his greatness is unsearchable.
Who does great things past finding out; yea, and wonders without number.
God thunders marvelously with his voice; great things does he, which we cannot comprehend.
And the angel of the LORD said unto him, Why ask you thus after my name, seeing it is wonderful?
The heart is deceitful above all things, and desperately wicked: who can know it?
When I thought to know this, it was too painful for me;
There are three things which are too wonderful for me, yea, four which I know not: The way of an eagle in the air; the way of a serpent upon a rock; the way of a ship in the midst of the sea; and the way of a man with a maiden.
And I Daniel fainted, and was sick certain days; afterward I rose up, and did the king's business; and I was astonished at the vision, but none understood it.
And they kept that saying with themselves, questioning one with another what the rising from the dead should mean.
1 Corinthians 14:2
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.