I was at the John Owen Centre today for the 42nd (apparently) meeting of the Theological Study Group, which is a book reading group. Our book for today was an old one (we try and alternate with newer ones). Under the competent chairmanship of Jeremy Walker eight of us discussed Augustine's Confessions. Most of were working from Roman Catholic Garry Wills' relatively recent translation. There was general agreement among the eight of us that this was worth reading although some of it was hard to grasp. Augustine was a n enthusiast, almost maniacal at times. We liked the evangelical Augustine but recognised that there were other elements there that we would not be happy with. It is good when a real classic proves to be as good as people say. There was a variety opinion on the value of the exegesis and the spiritual stimulus it might prove to be. Next time it is Bruce A Ware's The man Christ Jesus.
Bonhoeffer uses a similar phrase 'worldly Christianity'. It's J Gresham Machen that I want to line up most closely with. See his Christianity and culture here. Having done commentaries on Proverbs (Heavenly Wisdom) and Song of Songs (Heavenly Love), a matching title for Ecclesiastes would be Heavenly Worldliness. For my stance on worldliness, see 3 posts here.