Randy Alcorn was interviewed on The Call to Mastery with Jordan Raynor about his book Heaven.  In this audio clip, Randy talks about what inspired him to write Heaven.

Everything will be glorified, even nature itself. And that seems to me to be the biblical teaching about the eternal state: that what we call heaven is life in this perfect world as God intended humanity to live it. When he put Adam in Paradise at the beginning, Adam fell, and all fell with him, but men and women are meant to live in the body, and will live in a glorified body in a glorified world, and God will be with them.

In 2019, Randy Alcorn spoke on the subject of the New Earth at Good Shepherd Community Church, in Oregon.