Having read John Fesko's book on the tabernacle recently I dug out my unread copy of his The fruit of the Spirit is .... It is a tiny book that just goes through the passage in Galatians 5, its distinctive being the way it draws on the Old Testament material that Paul must have in mind when he writes. It is worth checking out.
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.