Belief and religion is whatever you want it to be because it is man made and maintained by man.

Modern Christianity, especially modern American Nationalist Christianity is based on the belief that you can literally do whatever you want in life, even the most despicable, immoral, selfish and disgusting things .... and their modern belief is based on the idea that if God doesn't like what you are doing, they you will be severely punished for your behaviour, in this life before you go too far ... or in the next life after you die. However, if you do those terrible, disgusting things and nothing terrible happens to you and you continue to lead a good, happy, healthy life ... then it is a sign that God has allowed you to continue and that you are part of a grander plan where you should be allowed to continue doing the terrible things you are doing in order to fulfill some sort of prophecy or master plan.

If you hoard wealth, destroy the poor, ignore moral values and continue down a path where you just literally want to destroy everything and everyone for your own greed and you get away with it all ... then God is complicit and wants you to get away with it ... he allowed it all, which makes it sacrosanct ... it is God's will.

In the case of Catholicism in particular, this is a feature and not a bug. Catholics famously and proudly don't read the bible, but rather have its presumptive contents preached at them — with various degrees of translation, omission, or addition to suit the current whims of the Church — by their deacon.

A significant portion of what people assume to be modern Christian belief among multiple sects and denominations is not supported scripturally, to put it mildly. But the Catholics manage to institutionalize that phenomenon to a degree that makes all the others look like a monthly book club.