I thought the death of Marshall Lytle, bass player with Bill Haley and the Comets, at the end of May (he was 79) was a good excuse to put this up from 1955. The bassist developed a lively stage presence, throwing his bass into the air, lifting it over his shoulder and riding it like a horse. The group landed their biggest hit in 1955 after a version of their classic recording of "Rock Around the Clock" appeared in the opening credits of the movie Blackboard Jungle.
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.