Strange day in some ways in that vast numbers of people were away (all my church officers and their wives, our two LTS students and their wives, etc, etc) yet somehow we filled the place, at least in the morning, with various visitors and occasional attendees (down to about 13 in the evening). As is often the case, it had quite an international flavour, with England, Wales, Ireland, Spain, Romania, Turkey, Ghana, Nigeria, India, Sri Lanka, Korea, Hong Kong, The Philippines and Jamaica all represented. Some local kids turned up for Sunday School as they sometimes do. I preached from 1 Corinthians 2:10bff in the morning about what preaching is - namely what Paul calls earlier in the chapter a demonstration of the Spirit. In the evening we sat down to communion and then looked at Numbers 30, a chapter chiefly about vows.
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.