TheGreatEscape said:
There has to be life after death for there to be justice.
If there is no ultimate basis for justice, then there is no ultimate basis for ethics.
It's pretty simple.
From 1 Corinthians 15:32 (ESV)
If the dead are not raised, "Let us eat and drink, for tomorrow we die."
Otherwise our suffering is all in vain.
As I understand the Christian perspective:
A wire is made by people to conduct electricity. It is intentionally designed, built, and implemented for a purpose. If it functions according to its design, we might say it has successfully served its purpose. If it is built with a variation or flaw that causes it to not function as designed, we may discard the wire.
The claims of Christianity include that we are made by God, designed with something in mind and implemented on Earth for that purpose. Purpose, meaning, justice are absolutes and immutable. Those that live as intended have successfully fulfilled a purpose. Those that do not might be discarded (or tortured).
Christianity - through my perspective:
Do you object to my analogy with the wire because we have free will and a wire does not? Neither human nor wire is in a position to determine its own purpose, its own meaning, or the criteria against which it will be judged. These things are predetermined and then prescribed by our respective Creators. A wire's variation that does not allow it to perform according to its purpose has no value. So what value is human diversity to an absolute Creator that demands conformity?
What free will do I have? Free will to choose my own favorite color? When the 'rightness' of any meaningful choice is set and all 'wrong' choices are voided in the end, we have no free will.
Christian free will is that we are permitted to choose to do exactly as we are supposed to do or be annihilated or tortured. Do you have a perspective on morality, ethics, justice that differs from God's? You are wrong. You are not permitted to retain that position. Conform. . . . or be zapped out of existence or chewed by Satan for eternity. It is a spiritual and intellectual slavery.
All human discussions and debates about meaning and purpose and justice are meaningless. Every attempt at philosophy, every thought or emotion, and any experience you've ever had are like an intellectual and humanitarian form of nihilism. The human experience has no value and no amount of any of thought / emotion / reason / experience can possibly 'move the needle' - All that matters is the predetermined and prescribed Truth. Cold immutable absolutism.
God is the ultimate authoritarian. He has created me with my flaws and variations with the intention that I should serve a purpose. God's love is that I should do as I am told and reject my flaws and variations or be tortured. God does not love us as we are. When you love someone as they are, you do not command them to change.
If Christianity is true, then all important forms of human diversity, individuality, or alternate purposes are worse than meaningless . . . they are our flaw. The bug in the system. The thing preventing us from our purpose. I find it horribly depressing to think that our only potential value is in submission to what we have been commanded to do.
A different perspective:
A worldview not based in absolutes and objective truths might be one where eternal meaning and justice have no value, but it is a worldview where human diversity, human reason, human emotion, and human experience does have value. . . even if the value is merely assigned by ourselves.
Human philosophy, rational thought, and ethics have value. These are our tools for understanding our reality and determining what our purpose is.
The human experience has value. It informs the items above. Diversity of thought and opinion has value. Discussion and debate about morality and ethics has value. Respect for others with different worldviews has value. The humility to compromise and coexist has value.
A non infinite value to our lives means that this time that we have now is infinitely valuable.