But whosoever will be great among you, let him be your minister, and whosoever will be chief, let him be your servant. Even as the son of man came, not to be ministered unto, but to minister: and to give his life for the redemption of many. ... When the lord of the vineyard cometh: what will he do with those husbandmen? They said unto him: he will evil destroy those evil persons, and will let out his vineyard unto other husbandmen, which shall deliver him his fruit at times convenient; ... As touching the resurrection of the dead: have ye not read what is said unto you of God, which sayeth: I am Abraham's God, and Isaac's God, and the God of Iacob? God is not the God of the dead: but of the living.
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.