That is the only dogma that cannot change. Paul was very clear on the fact that all of the moral teaching is inferior to a belief in the Resurrection.  Now, there are those who question how the Resurrection took place (whether there was ever a burial - because the crucified usually rot on their trees - but the fact is that people report seeing the risen Lord and that witness is why there is Christianity.  The rest can be handled without that bit of faith by philosophy.