Romans 11:33
the depth of the riches, both of the wisdom and of the knowledge of God! How unsearchable are his judgments, and his ways past finding out!
Matthew 11:27
All things have been delivered to me by my Father; and no one knows the Son, but the Father; nor does any one know the Father, but the Son, and he to whom the Son will reveal him.
1 Corinthians 2:10
But God has revealed them to us through his Spirit; for the Spirit searches all things, even the deep things of God.
1 Corinthians 2:16
For who has known the mind of the Lord, that he may instruct him? But we have the mind of Christ.
Ephesians 3:8
to me, who am by far the least of all the saints, has this grace been given, that I might preach among the Gentiles the unsearchable riches of the Christ,