Our last Lord's Day of 2017 was noa jam packed affair though there were plenty in the morning. Though several are still away we had one or two visitors - family members, etc. One couple Iknow are looking for a church to settle in. We will see. In the morning I preached from Romans 12:1. That is our text for the year. In the evening I preached from 2 Peter 3:8, an appropriate text for the turn of the year. The evening servie was preceded by communion (held over from the 17th). We were very few for that. We had only one reading in each service and so both services were only just over the hour each.
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.