Matthew 13:11
He replied, "You disciples are being given an understanding of the secrets of the kingdom of heaven, but the crowds of people are not.
John 7:17
If anyone [really] desires to do what God wants, he will know whether my teaching comes from God or whether I am speaking on my own authority [only].
1 Corinthians 1:30
But God brought you into [fellowship with] Christ Jesus, who was made to be God's wisdom for us. Through Christ you have received a right relationship with God, [as well as] holiness and redemption [i.e., being bought back from Satan].
Colossians 2:3
In Him all the treasures of wisdom and knowledge are hidden.
Hebrews 4:12-13
For God's word is alive and active and sharper than any double-edged sword. It penetrates [deep enough] even to divide [a person's] soul [from his] spirit, and his joints [from his] bone marrow [Note: This is figurative language describing the penetrating effect of God's word into a person's spiritual, inner being] and is able to judge the thoughts and intentions of a person's heart.