Romans 11:33
O the depth of the riches, and of the wisdom, and of the knowledge of God! How unsearchable are his purposes, and his ways past finding out!
Matthew 11:27
All things were delivered to me by my Father; and no one knoweth the Son but the Father; nor doth any one know the Father, but the Son, and he to whom it is the will of the Son to reveal him.
1 Corinthians 2:10
For God hath revealed them to us by his Spirit; for the Spirit searcheth all things, even the depths of God.
1 Corinthians 2:16
For "who hath 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 less than the least of all saints, was this grace given, to make known among the gentiles the glad tidings of the unsearchable riches of Christ,