This first Lord's Day of the final month of 2012 began with communion where we read again from John 16. We had a good congregation in the morning supplemented by visitors and a nice bunch of young people here for dinner. We looked at 2 Peter 1:10, 11 on making your calling and election sure. In the evening we looked at the rest of Habakkuk 2. We were a smaller number by that point.
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.