Matthew 11:25
At that time Jesus answered and said, I thank thee, O Father, Lord of heaven and earth, that, though thou didst hide these things from the wise and discerning, thou didst reveal them to babes.
Matthew 13:17
Truly do I say to you, that many prophets and righteous men desired to see the things which ye see, and did not see them; and to hear the things which ye hear, and did not hear them.
Matthew 13:35
that it might be fulfilled which was spoken through the prophet Isaiah, 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 Gods wisdom in a mystery, the hidden wisdom, which God determined on before the world was, for our glory;
Colossians 2:3
in which are stored up all the treasures of wisdom and knowledge.