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.
Lord's Day May 13 2018
I preached Sunday in the morning on a great gospel text, Romans 8:32, and then in the evening on 1 Corinthians 14:19, a much more difficult text, especially once you start making applications. I think we are convinced on the theology if not the application. We had tea together in the afternoon and that was a lovely time of fellowship. A good day. We sang Cowper's wonderful hymn
My song shall bless the Lord of all,
My praise shall climb to His abode;
Thee, Saviour, by that name I call,
The great Supreme, the mighty God.
Without beginning, or decline,
Object of faith, and not of sense;
Eternal ages saw Him shine,
He shines eternal ages hence.
As much, when in the manger laid,
Almighty Ruler of the sky;
As when the six days’ works He made,
Filled all the morning-stars with joy.
Of all the crowns Jehovah bears,
Salvation is His dearest claim;
That gracious sound well-pleased He hears,
And owns Emmanuel for His name.
A cheerful confidence I feel,
My well-placed hopes with joy I see;
My bosom glows with heav’nly zeal
To worship Him Who died for me.
As man, He pities my complaint,
His pow’r and truth are all divine;
He will not fail, He cannot faint,
Salvation’s sure, and must be mine.