Job 28:21
Seeing it is hidden from the eyes of all living, and kept close from the birds of the sky.
Psalm 49:3-4
My mouth will speak words of wisdom. My heart shall utter understanding.
Matthew 11:25
At that time, Jesus answered, "I thank you, Father, Lord of heaven and earth, that you hid these things from the wise and understanding, and revealed them to infants.
Matthew 13:17
For most certainly I tell you that many prophets and righteous men desired to see the things which you see, and didn't see them; and to hear the things which you hear, and didn't hear them.
Matthew 13:35
that it might be fulfilled which was spoken through the prophet, saying, "I will open my mouth in parables; I will utter things hidden from the foundation of the world."
1 Corinthians 2:7-10
But we speak God's wisdom in a mystery, the wisdom that has been hidden, which God foreordained before the worlds for our glory,
Colossians 2:3
in whom are all the treasures of wisdom and knowledge hidden.