Hello Momof3
I don't know of a specific scripture that states that exactly, but I do think certain scriptures signify that.
I Peter 1:12 Unto whom it was revealed, that not unto themselves, but unto us they did minister the things, which are now reported unto you by them that have preached the gospel unto you with the Holy Ghost sent down from heaven,
which things the angels desire to look into.
I Corinthians 2:11-12
For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God. (12) Now we have received, not the spirit of the world, but the spirit which is of God; that we might know the things that are freely given to us of God.
I Corinthians 2:16 For who hath known the mind of the Lord, that he may instruct him? But we have the mind of Christ.
Romans 8:27 And he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God.
These are just a couple, Momof3. Perhaps others will add more.
God bless you.
Love,
Mack