Here are some older PB threads to peruse. I narrowed them down in my search to those in which Rev. Matthew Winzer participated, as he tended to give insight and provoke conversation in a particularly helpful way. So you'll need to back up from where the links start you in each thread to get context.
https://puritanboard.com/search/40136724/?q=two+kingdom+theology&o=relevance&c[user][0]=1012
https://puritanboard.com/search/40136724/?q=two+kingdom+theology&o=relevance&c[user][0]=1012