Cross reference
Job 28:21
21 Seeing it is hid from the eyes of all living, And kept close from the birds of the heavens.
Psalms 49:3-4
3 My mouth shall speak wisdom; And the meditation of my heart shall be of understanding.
4 I will incline mine ear to a parable: I will open my dark saying upon the harp.
Matthew 11:25
25 At that season Jesus answered and said, I thank thee, O Father, Lord of heaven and earth, that thou didst hide these things from the wise and understanding, and didst reveal them unto babes:
Matthew 13:17
17 For verily I say unto you, that many prophets and righteous men desired to see the things which ye see, and saw them not; and to hear the things which ye hear, and heard them not.
Matthew 13:35
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
7 but we speak God's wisdom in a mystery, `even' the `wisdom' that hath been hidden, which God foreordained before the worlds unto our glory:
8 which none of the rulers of this world hath known: for had they known it, they would not have crucified the Lord of glory:
9 but as it is written, Things which eye saw not, and ear heard not, And `which' entered not into the heart of man, Whatsoever things God prepared for them that love him.
10 But unto us God revealed `them' through the Spirit: for the Spirit searcheth all things, yea, the deep things of God.
Colossians 2:3
3 in whom are all the treasures of wisdom and knowledge hidden.