Can We Find Proof That The Millennium Is In Progress in the Epistles?

The Millennium in Revelation 20 appears to be a default text for every time a futurist gets in a head lock on the time statements of the imminent end time. They believe because it mentions a thousand years reign that it is proof of a yet future return of Christ. However, the epistles place such a notion in check and show us clearly that the millennium was in progress during the time of the first century church. Today, we examine some of that evidence.