Election is a good thing; to be chosen of God, and precious; but we are elect in Christ Jesus. Adoption is a good thing; to be adopted into the family of God is a good thing—ah, but we are adopted in Christ Jesus and made joint-heirs with him. Pardon is a good thing—who will not say so?—ay, but we are pardoned through the precious blood of Jesus. Justification—is not that a noble thing, to be robed about with a perfect righteousness?—ay, but we are justified in Jesus. To be preserved—is not that a precious thing?—ay; but we are preserved in Christ Jesus, and kept by his power even to the end. Perfection—who shall say that this is not precious? Well, but we are perfect in Christ Jesus. Resurrection, is not that glorious? We are risen with him. To ascend up on high, is not that precious? But he hath raised us up and made us sit together with him in heavenly places in Jesus Christ—so that Christ must be good positively, for he is all the best things in one. And if all these be good, surely he must be good in whom, and by whom, and to whom, and through are all these precious things.
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.