I think the best thing to do is to leave it to each woman's conscience and leave the procecdure itself legal and available, and safe as possible.
The only question that needs to be answered is: what are the unborn?
If the unborn are human beings and full members of the human community, then abortion is murder. And if abortion is murder, then it should be illegal. If the unborn are not human beings, then it isn't even a matter of a woman's conscience; abortion is fine.
The strongest philosophical and scientific arguments support the idea that the unborn are, in fact, human beings. Therefore, abortion should be made illegal.
As for the rest, none of the Scriptures given address abortion. The writer of the blog is more or less correct--the Bible may be silent on the issue, although it comes down to a translational issue. Of course it should be noted that silence on the issue does not mean a biblical case cannot be made against abortion.
According to Alvin J. Schmidt in his book
Under the Influence: How Christianity Transformed Civilization, there are two references in the Bible that we can consider. The first is found in Gal. 5:20, in Paul's list of sins. The Greek word translated as "sorcery" or "witchcraft" is
pharmakeia, which has as one of its meanings, the administering of potions or drugs, which is how abortion was performed in those days. Also worth noting is Rev. 21:8, wear John used the plural form
pharmakos, immediately after condemning people who are "sexually immoral." That is fairly significant.
But
pharmakeia is also used by the pagan writer Plutarch in specific reference to its use "for contraception and abortion purposes" (Schmidt, pg 57). And on it goes with extrabiblical references by Christians and Christian sources as well.