I must confess I haven't given the team from the place where I was born much thought over the years but the idea they are back in the league is brilliant. My uncle Ray will be chuffed. They beat Wrexham 2-0 in a play off. More here.
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.