A little ,ate with this again but we had a good turn out on Wednesday, even though it was half term and some were away. A new lady from the area was there. She wants to get to know the Bible. I arrived late which is never a good start but I did recover and was able to speak on Leviticus 10 and led a good prayer time. Most people prayed. Leviticus 10 is an interesting chapter. We have recently looked at Acts 5 and there are definitely parallels there.
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.