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.
10 things about the sinfulness of sin
Ralph Venning says these ten things of sin in his Plague of plagues. Numbers 2-6 are from Bunyan
1. It turns his grace into wantonness and is
2. The dare of God’s justice
3. The rape of his mercy
4. The jeer of his patience
5. The slight of his power
6. The contempt of his love
7. The upbraiding of his providence
8. The scoff of his promise
9. The reproach of his wisdom.
10. It opposes and exalts itself above all that is called God.