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.
Aber 2017 First Morning Second Evening
The main speaker this year is Art Azurdia who is speaking from Acts. He began with 1:1-11. Hector Morrison, principal of Highland Theological College, is slated to speak on the Fatherhood of God and began in Genesis. Both were worth listening too though not always easy to take in.