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.
10 Rocked up takes on Cantata 147 by Bach
1. Ekseption 'Jesu, Joy' cantata from choral BWV 147
2. Herb Alpert 'Jesu, Joy of Man's Desiring'
3. Wendy Carlos 'Jesu, Joy of Man's Desiring'
4. Apollo 100 Joy
5. Jigsaw 'Jesu, Joy of Man's Desiring'
6. Moody Blues The quiet of Christmas morning (Bach 147)
7. The Byrds She don't care about time
8. Margo Guryan Someone I Know
9. The Beach Boys Lady Lynda
10. Bob Dylan Sad eyed lady of the lowlands