Rochester,
This is WHY God became man incarnate and died:
This was part of my post in another thread about salvation. The other guy said he finally read something that made sense to him

Made me feel good, so I hope you understand as well:
I don’t know you, so I have no idea what your knowledge is about this fundamental Catholic doctrine. I will assume that you don’t know (but it is only an assumption - I am NOT saying you don’t know).
Catholics “break down” getting into heaven into two things that must occur:
- Redemption
- Salvation
Redemption
As God was infinite love, Adam’s and Eve’s injury to him was also infinite. Their ACT was not infinite - it cannot be, as they were human. But to hurt an infinite being is to cause an infinite amount of harm.
So how does one seal the breach between man and God? God did it (which he did NOT HAVE TO DO) by becoming man. But as he was man and God, then all acts done by him as a man were infinitely good. But to also show us his depth of love for us, God, as man incarnate, suffered immensely for us in the physical sense of his being a man who was wipped, mocked, spat upon, and finally crucified.
The Passion that Christ endured served as payment (that is, redemption) to God to heal that breach. Of course, God accepted that act of his Son as completed and satisfied 9remember - Jesus said “it is finished”, and God said, he was “well pleased” with his son.
Thus, Jesus did something that no man could do - redeem mankind in the eyes of God. That was an objective, supernatural act that benefitted EVERY LIVING HUMAN, WHETHER CATHOLIC, PROTESTANT, ORTHODOX - EVEN ATHEIST.
Salvation
Now, we get to the “saving” part. Protestants seem to “combine” Christ’s act of redemption (crucifixion) with a SUBJECT “thing” that must occur: salvation. And for salvation, MAN IS NEEDED. Man benefitted from the objective act of redemption, whether he wanted it or not, but man does NOT benefit from salvation, whether he wanted it or not, because MAN MUST PARTICIPATE IN HIS OWN SALVATION.
Remember, the bible states that man “should work out your salvation with fear and trembling”. Now, does that sound like “once saved/always saved”? Does that sound like the hard-core fundamentalists who say “I KNOW I am going to heaven”. My response is, "really? That’s funny, because Christ said only God can look into the window of a man’s soul, and thus only God can know who will be saved (he already knows because of his ominiscience - but that is an entirely different topic).
It is MAN who must work on his salvation, in cooperation with God, by living as Christ taught, believing as Christ taught, and being contrite when one has sinned. Now, if we did everything we are supposed to do, we can have a pretty good idea if we are bound for purgatory or hell (and if purgatory, then it is automatically heaven in the end) at any moment in our lives (or we SHOULD know the state of our soul - if we don’t, we have some serious problems).
So when distinguishes between redemption and salvation, we ARE like fundamentalist protestants when we and they say that “only God could have done what he accomplished on the cross”. That is very true. But we don’t call that act alone “salvation”. We call it redemption.
Thus, a quick guide to Catholic teaching on redemption/salvation.
I hope I made sense.