Went with the boys to see the Chelsea game last night, the Europa Cup semi-final. A rare treat. The first half wasn't up to much but Chelsea's three second half goals were more than enough (they were already 2-1 up). We were near the fanatical Basel supporters who cheered, clapped and sung throughout, letting off fireworks at the end. Having been a Chelsea fan of old I was able to join in the chorus of Blue is the colour that was sung at the beginning. It's amazing what will stick. The final is in Amsterdam.
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.