I was preaching at LTS on Friday afternoon. As well as daily morning devotions they have someone to preach most weeks (usually from the faculty). About twenty gathered and I preached on Ehud as an example of what preachers should be (I hope the message sunk in). My son was amused that after making a point about not making sermons too long I said "seventhly". It was good to be there. A nice lunch followed. Good old Giovanni. It is encouraging to think that there is a small but rising generation of preaches being prepared at the seminary.
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.