EDITOR'S NOTE: Sanctity of Human Life Sunday (Jan. 18) commemorates 42 years of legal abortion in the United States. NASHVILLE (BP) -- The claim of some pro-choice groups that Scripture does not address abortion would have surprised both Jews and Christians living in the first century. That's because they were virtually unanimous that the Bible implicitly -- though clearly -- prohibited the killing of unborn children. Abortion advocates today tend either to deny this fact or remain gladly ignorant of it. For example, Planned Parenthood, America's largest abortion provider, issued a "pastoral letter to patients" last spring stating, "Many people...