Having read one or two of Fesko's books recently I thought I'd try his 2014 Songs of a suffering king which looks at Psalms 1-8. Fesko's concern is to see how the eight psalms relate to each other and especially how they speak of Christ. At the end of each chapter he suggests a way of singing the psalm (which I did and enjoyed doing I confess) and gives a series of questions, which I spent less time on. Fesko seeks to be vigorous in his scholarship but at the same time practical which he more or less manages, though he can sound ponderous at times. This is certainly not Dale Ralph Davis. His chapter headings are as follows - Song of the Righteous Man, Song of the Lord's Messiah, Song of Deliverance, Song of Hope, Song of Protection, Song of Forgiveness, Song of Vindication and Song of Majesty.
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.