From the work:
"The Didache
The Lord's Teaching Through the Twelve Apostles to the Nations."
Chapter 2. The Second Commandment: Grave Sin Forbidden. And the second commandment of the Teaching; You shall not commit murder, you shall not commit adultery, you shall not commit pederasty, you shall not commit fornication, you shall not steal, you shall not practice magic, you shall not practice witchcraft, you shall not murder a child by abortion nor kill that which is born. You shall not covet the things of your neighbor, you shall not swear, you shall not bear false witness, you shall not speak evil, you shall bear no grudge. You shall not be double-minded nor double-tongued, for to be double-tongued is a snare of death. Your speech shall not be false, nor empty, but fulfilled by deed. You shall not be covetous, nor rapacious, nor a hypocrite, nor evil disposed, nor haughty. You shall not take evil counsel against your neighbor. You shall not hate any man; but some you shall reprove, and concerning some you shall pray, and some you shall love more than your own life.Bare in mind the above IExtra-Biblical) book was actually from the Apostles to the Disciples, not from the lips of Jesus Himself, yet it was viewed by them as the way to understand things around them.... Abortion did exisit back then... and it was equated with Murder...
I noticed one argument used in here in favor of abortion was "it will happen anyways, so let us help it in a clean environment" are you also in favor of rape if it's done in a sterile cage? or physician assisted suicide? maybe it's ok to lie as long as it's politicians who do it? and stealing is ok as long as the victim isn't harmed in the process?
I got more of those... my point is Situational Ethics is a bad idea in light of knowing something to be a sin, if it's a sin leave off doing it, if you are in a position of leadership, warn others about the dangers of it, if necessary to combat the evil, take the fight to the government but only after you have tried to reason with people around you.
By the Way, I don't mean to condemn anyone with this line of reasoning, I just wanted to point out it's flaw...
I am pro-life, my mother had an abortion, she lives with the grief and pain and sorrows of that decision. Yes, she's forgiven for her sin, yes she's repented of them, but there is still emotions that person must live with.... that is some she must.... we all have things we wish we didn't do... but we did... we try to move and with God's help we will, else, we fail and lie in the dust forever.