The Constitution was written to protect the citizens of the United States after our forefathers faced religious persecution and could not express their religion in freedom without suffering from government consequence.
"Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."
Obamacare is a law that creates a subsection that prohibits free exercise of Christian religions by forcing us to support and pay for abortions and birth control. These are two things that stand against the religious beliefs and fundamentals in Christian religions as a form of murder and anti-life.