but it is also frequently an expression of justice. — TheWillowOfDarkness
N drops the scenario straight onto the Jews. There's no doubt that the Jews had a unique problem with the concept of justice because their religion teaches that they have a special relationship with God. They have a deal or covenant in which God protects them if they meet his requirements as laid out in the Mosaic law. Anytime bad things happened, the Jews would try to work out how they had failed God so they could get it right. Eventually that technique was strained to the point of absurdity.
Christian apocalypticism actually starts about 200 years before Jesus was born. A statue of Zeus was installed in the Holy of Holies in the temple in an attempt to Hellenize the Jews. Scholars say that it was around this time that the book of Daniel was written and circulated. The concept of the World to Come is taking shape as an answer to the problem of God's justice. They probably weren't even aware that they were modifying an element of the Zoroastrian religion.
The World to Come is a time when the Gentiles are supposed to finally get what's coming to them. The Jews will be raised up to their proper place at the right hand of God. By putting resolution of injustice somewhere off in the future, Good becomes other worldly. This world of wounded flesh is all bad and just a passing shadow pending the arrival of the Messiah.
Christians say the Messiah did come, but obviously nothing significant changed. What a drag. Maybe he'll come again... yea, that's it.