It was Easter Sunday and so resurrection hymns and messages were in order, which we were happy to fit in with although with some latitude. I preached from Luke 24:45-47 in the morning and Romans 4:25 in the evening. The congregations were not bad considering how people are often away at this time of the year. With some visitors, however, we were a decent number and only one family seems to have been caught out by the change of the clocks. One nice thing was that we had four in the Sunday School when we thought there might be only one (my wife did an emergency lesson). It was the visit of a new family in the morning and two almost new people in the evening that moist encouraged me. We ended up introducing four important words that begin with 'i' in the two meetings - inspiration, illumination, infusion and imputation.
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.