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.
Two excellent conferences coming up - Book now!
I've been a bit sleepy on the conference front but I do want to flag up two conferences coming up. The first is the Westminster Authentic Calvinism on December 2 and 3 and the second is the Carey Minsitry in the last days January 6-8. Double click then copy to see more clearly.