We watched the first of four episodes of Jeremy Paxman's series for BBC 1 on the First World War last night. It was pretty good. I had not realised that Britain was actually invaded in that period with over a hundred dying on the north east coast. My grandfather was a conscript who was at the Somme so I have always been aware of the war but not well informed about it really. Eleri's grandfather was a conscientious objector. More here.
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.