Paul was trained to believe in an external, historical past of Israel. To him David was the king of kings. But when God revealed his son in him, Paul claimed he did not see anyone as flesh and blood. What man, believing in the historicity of scripture, could understand what Paul was talking about, when he was the one who formerly tormented anyone who would not accept the historicity of the Old Testament! But, when discussing the Messiah, Paul confessed that he could no longer believe in any historical character of the Old Testament. (The New, of course had not been written yet).
Through revelation Paul knew who the Messiah was and who the Lord was. Seeing himself as the Lord, the one the world believes to be Jesus, Paul knew that what the world believed to be a mighty king was his only begotten son who was never flesh and blood. He knew the entire episode took place in the spirit and said:
“When it pleased God to reveal his son in me, I discussed it not with flesh and blood.”
To see Jesus, Abraham, Moses, Jacob, or any of the characters of scripture as men of flesh and blood and external to yourself in the pages of history, is to see truth tempered to the weakness of your soul, because until the revelation takes place, you are unable to stand the force of the light of revelation. There is nothing more difficult than to give up a fixed idea, especially concerning religion or politics. Born into a certain religious group, your mother taught you what she was taught by her mother. The school and church you attend confirms your mother’s words and you believe that the characters of scripture lived in time and space and left behind a record of their physical existence, when it isn’t so at all.