Here are a few lectures of his which I came across on the internet. They are excellent. Here is the link. (scroll to the bottom of the page) Here is the blurb for the lectures.
Dr. Goheen’s first session explores the gospel as the announcement that all of creation and human life is being renewed, and the church’s mission to make known that gospel in life, word, and deed. Understanding the comprehensive scope of the gospel is mission critical as we pray, work, study, and live in this world as God’s kingdom witnesses.
This second session explores how our capitulation to the Western worldview has limited the gospel and narrowed our mission. In order to fully embrace the big gospel of Jesus, we need to understand how we shrunk God?s big story in the first place.