Article [IX]
"The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people."
It does not immediately follow that abortion is among the unenumerated rights spoken of in the 9th Amendment. The very question at hand is whether abortion is among the unenumerated rights, so the 9th Amendment merely returns us to the original issue.
"The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people."
It's simply unjust how "Congress shall make no law respecting the establishment of religion..." is used by the courts to suppress all sorts of religious expression, especially in spite of the 9th.
The penumbra; the penumbra!