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 culturehere. 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.
Gail and Paul
We had the invite to my sister's wedding today.
It reminded my wife of two bakers in nearby Hampstead.
My sister will be giving up being a Baker (in joke).