We were in Hastings the other day and I noticed this pub called the General Havelock. Havelock was a great British general in the 19th century who has a bust in Trafalgar Square. He was also a Baptist and a man of true faith. I wondered what the connection with Hastings might be a she was a northerner. It is simply that upon his death in November 1857, something the whole country seems to have mourned, Passenger Station Road in Hastings was re-named Havelock Road in his honour and the Havelock Hotel was opened at no. 27. (The office of a prominent local architect George Beck, at No. 37 Havelock Road, was called Lucknow House - Lucknow being the scene of Havelock’s final battle during the Indian Mutiny and the place where he died of dysentery.)
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.