Romans 11:33
O the depth of the riches, and wisdom, and knowledge of God! How unsearchable are his judgments, and his ways past tracing out!
Matthew 11:27
All things are delivered to me by my Father; and no one knoweth the Son but the Father; neither knoweth any one the Father, save the Son, and he to whomsoever the Son is pleased to reveal him.
1 Corinthians 2:10
But God hath revealed them to us by his Spirit; for the Spirit searcheth all things, even the deep things 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
Unto me, who am less than the least of all saints is this grace given, to preach among the Gentiles the unsearchable riches of Christ.