The Christian novelty:

What makes Christianity so different is the Trinity and the fact that God is three Persons.  I sometimes take this for granted.  What God said, in revealing himself as three Persons, is that there is nothing wrong with person-hood, with being an individual, a particular unique free being.  After Jesus, there is even a certain perfection in the category of person.

If God was ok with person, we should be too.  Further, we should fight against ways of thought that devalue the person.  Any system of escape or flight from the world is wrong.  Any rejection of the gift of freedom God has given us, or separation of freedom from our very existence is dangerous and wrong.  Here, I think of Calvinism with its notion that God wishes to save some, but not all.  Calvinism is a rejection of person; it says God is not ok with person in general, but only arbitrarily with a sub-section thereof; it says that freedom is illogical, but it is within our freedom (a gift from our loving God) that we choose to follow Jesus -- this is where our yes to God comes from.

"The coextensiveness of necessity and will indicates that necessity is not mechanical self-diffusion and freedom is not illogical arbitrariness."   -- Antonio Lopez, God the Father

"To recognize that God is all in all,
and to desire to give everything to him,
necessarily means
granting his ability to change man
and thus to provide a way to allow man
to know and discourse
with him in a real way."