THE QUESTION:

When does life begin?

THE RELIGION GUY'S ANSWER:

Those four words are regularly posed in the current abortion debate, so let's scan the lines in pregnancy that have been drawn by experts — religious and secular — in the past.

Pre-scientific cultures spoke of "quickening," typically between 16 and 18 weeks, when the mother first feels the unborn child moving in her womb. A famous example involves the unborn John the Baptist in biblical Luke 1:41. Some ancient Jewish authorities in the Talmud, and Roman and Greek philosophers, supposed that the unborn child "formed" earlier, at 40 days.

Then there's "viability," when a fetus can live on its own outside the womb, typically reached around 23 or 24 weeks, or somewhat earlier or later in individual cases. The U.S. Supreme Court legalized abortion before that point in its 1973 Roe v. Wade decision, and after viability when there are risks to the mother's health, broadly defined.

The high Court on December 1 hears a case from Mississippi, which defied the Roe ruling and bars abortions after 15 weeks on grounds that the fetus experiences pain by then. A Missouri law, also under court challenge, puts a ban at eight weeks when "everything that is present in an adult human is now present in your baby," according to the American Pregnancy Association. The Court temporarily left in place a ban in Texas (likewise in 13 other states) after six weeks, when pulsations can be diagnosed at what eventually becomes the fully formed heart.

Many modern Christians believe that life begins at conception (sperm first meets egg) or implantation (fertilized egg attaches to the mother's womb) while some put the line a bit later at twinning (after which multiple pregnancies do not occur).

Note the brief filed last month in the Mississippi case by pro-choice religions including "mainline" Protestant churches, non-Orthodox Judaism, Unitarian Universalists and others. It says "numerous religious traditions posit that life begins at some point during pregnancy or even after a child is born."