When discussing religious or spiritual matters, we are repeatedly told that we should not be dogmatic, that all people have their own truth. Indeed, many, if not most, believe that absolute truth is impossible, and even if it were possible, we are told no one should desire such a thing. Let everyone have their own truth, as long as they keep to themselves and do not go bothering my concience with pesky righteous rules from God. Your religion might be true for you, but not for me.
But do we really want relative truth? Do we actually desire a truth that is different for each person? I submit that not only is this impossible, but even if it were possible, we would not want such a thing.
No one would really want a banking system that changed every time someone wanted a different value to be in the bank. No one would really want the speed limit in front of thier kids’ playground to change for every driver. No one would really want a police departement or judge that would listen to the facts of the case, then say “well, that’s true for you, but not for me.” No one would sign a legal contract and expect the other party to come back later and say “my truth changed after I signed that contract.”
So in spiritual matters, which have implications of how we live our lives right now and where we spend eternity, why in the world would we expect a system where everyone can have their own rules?
Thomistic Bent 
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