In 1 Corinthians 2:10, the Spirit reveals the deep things of God — showing that while only the Spirit knows God's thoughts, He shares them with us.

Proverbs 14:10 says only one's heart knows its own bitterness—illustrating the same principle that only one's spirit knows inner thoughts.

Proverbs 20:27 says the spirit of man is the Lord’s lamp searching innermost parts—directly mirroring the spirit’s knowledge of a person’s thoughts.

Romans 11:34 asks who has known the mind of the Lord — directly paralleling the claim here that only the Spirit knows God's thoughts.

Jeremiah 17:9 asks who can understand the deceitful heart—highlighting the hiddenness of the inner self, similar to the spirit’s exclusive knowledge here.

Romans 11:33 celebrates God's unsearchable judgments — reinforcing that only God's Spirit can know His thoughts, as stated here.