[St. Paul contrasts the ‘flesh’ and the ‘spirit’. The ‘flesh’ appears similar to the animal mind. It is unable to understand the things of God.
[What about ‘the blood and bones’?
Are these able to understand (or at least spiritually sense) the intentions of God?
In the the early Old Testament days, the answer was ‘yes’.
Don’t you feel it in your bones? Does it make your blood run hot or cold?
From the perspective of the New Testament, blood and bones are inadequate because they are constructed within the human to support the human.
Previously, one could sense the divine through the ‘blood and bones’, but not now.
The malleability of speech-alone talk deadens even these senses.]
The spiritual person judges everything. God is revealed to man through the spirit.