Everson was quite properly decided, you just disagree with it.  The merits of the case are clear -- there should be minimal entanglement between church and state, and Jefferson's wall is properly erected.

Ah yes, you conservatives prefer the "dead document" crap. Here is another quote from Jefferson:

Some men look at constitutions with sanctimonious reverence, and deem them like the ark of the Covenant, too sacred to be touched. They ascribe to the men of the preceding age a wisdom more than human, and suppose what they did to be beyond amendment... laws and institutions must go hand in hand with the progress of the human mind... as that becomes more developed, more enlightened, as new discoveries are made, institutions must advance also, to keep pace with the times.... We might as well require a man to wear still the coat which fitted him when a boy as civilized society to remain forever under the regimen of their barbarous ancestors.