We ended up singing 11 Christmas hymns yesterday (long story). I preached in the morning from Matthew 2 on the wise men and Andrew my assistant preached in the evening again from Luke 2 and peace with God. We were unable to attract any new local people but there were a good number at both meetings with the students home from college, etc. One of the London students was 21 and we had three cakes (long story again) and sang happy birthday morning and evening. What a good day it was. I have especially enjoyed singing the Christmas hymns this time round. The best ones are full of good things. Charles Wesley was a genius.
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.