Summary: Growing in Grace with God.
We now come to the most difficult face or phase of Paul in my mind, if you have followed my thoughts like Alice following the white rabbit you have already seen that it could have been possible for Paul to not only been liberal in his thinking but also radical. But when we come to this third face that I will call the reactionary or conservative Paul, and perhaps reactionary would be more appropriate a term than conservative.
A reactionary is an individual that holds reactionary viewpoints which cause them to seek to return to a previous state (the status quo ante) in a society They are at best obscurant, those who opposes intellectual advancement and reform, whether social or political. You can identify them as they would be characterized by opposition to intellectual advancement ...
Look with me at Titus "Exhort servants to be obedient unto their own masters, and to please them well in all things; not answering again; Not purloining, but shewing all good fidelity; that they may adorn the doctrine of God our Saviour in all things." (Tit 2:9-10 KJV). Now to be fair we would point out that in my dating of Paul’s corpus we would place Titus about 66 or 67 A.D., which would not give any trouble to those who hold that Titus was one of those letters that was not really written by Paul but was written under his name. They would be considered to be anti-Pauline on certain subjects, for example in the area that we have chosen to write about slavery. And again it would have been easy to accept that and go on. However gentle reader, I am, and I hope you not content with taking the easy answer. For in rejecting the easy way and choosing rather the difficult path, is how we stumble into a great truths looking for answers that other don’t bother to seek.
In a story told in many traditions and versions; a man is crouched over the ground at night under a lamppost obviously looking for something. A passerby asks, "Have you lost something?", "Yes, my key," he says. "Did you lose it here?" "No", he says, "over there, but there's light over here."
So for now we’ll continue and come back to this question. In Titus Paul speaks only about slaves, unlike Colossians and Ephesians, not directly "Tell slaves..." and says nothing to their masters "be obedient unto their own masters, and to please them well in all things; not answering again; Not purloining, but shewing all good fidelity; that they may adorn the doctrine of God our Saviour in all things " There is no mutuality or reciprocity of obligation in this one sided admonition.
It certainly seems as though based on my dating that Paul has had a change of heart and gone backward in his thinking. So thinking this through, we might have said that Paul being in prison, and wanting to be released (as a aside- my wife, Marti and myself, can understand Paul’s desire to be released - as Marti has been bed fast for more than 15 years now with M.E., and after all the friends and family have managed to move on with their lives, we are left alone feeling abandon and I as the only care giver who cares). I might point out that because I cannot leave my wife for a long period of time that I usually go to the 24 hour market in the wee hours of the morning and tell the grocers that "I am on a work release program".