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.
Tyndale New Testament - from Matthew 7
Whosoever heareth of me these sayings, and doeth the same, I will liken him unto a wise man, which built his house on a rock: and abundance of rain descended, and the floods came, and the winds blew, and beat upon that same house, and it was not overthrown because it was grounded on the rock.