Romans 11:33
O the depth of the riches both of the wisdom and knowledge of God! how unsearchable are his judgments, and how incomprehensible his ways!
Matthew 11:27
All things are delivered up to me by my Father: and no person knoweth the Son but the Father; neither knoweth any person the Father but the Son, and he to whom the Son is pleased to reveal him.
1 Corinthians 2:10
But to us hath God revealed them by his Spirit: for the Spirit searcheth out all things, even the depths of God.
1 Corinthians 2:16
For who hath known the mind of the Lord? who will instruct him? But we have the mind of Christ.
Ephesians 3:8
To me, who am less than the least of all saints, is this grace given, that I should preach among the Gentiles the unsearchable riches of Christ;