The actual text of the 1st Amendment, for the right-wingers who can’t wrap their heads around it:
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.
The very first clause is vital: “no law respecting an establishment of religion.” Making laws based on religious belief is prohibited. It is the very first thing said in the very first Amendment. No one is telling you to have an abortion that your religion prohibits. That’s covered by the second clause. The first clause says that you do NOT have the right to use your religion to enforce that belief on everyone else.