I was just checking out Thomas Gray's Elegy written in a country churchyard here. (It's too long for the short poem series). The page was headed with two ads - one for headstone cleaning and one for equestrian supplies (The ploughman homeward plods his weary way). Nothing for bells (The curfew tolls the knell of parting day) or veteruinary services (The moping owl does to the moon complain). I suppose they are longshots but worth trying. Any other good examples out 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.