I think you missed my intent. It would be a weak argument in trying to convince you. However, when arguing with someone who first claims to be arguing _against_ abortion based (at least in part) on this passage from the bible, it would always be a strong technique to address the basis of their argument.
For example I say:
Because A, then B.
It is always a strong argument to say: Well, I'm not so sure about that, but even if I were to agree with the structure of your argument I am sure that A isn't necessarily so. So get back to me when you can prove A. in the meatime, what about C, D and E, where Because C then NOT B, and Because D then Not B, and Because E then not B.
Re: on the other hand...
For example I say:
Because A, then B.
It is always a strong argument to say: Well, I'm not so sure about that, but even if I were to agree with the structure of your argument I am sure that A isn't necessarily so. So get back to me when you can prove A. in the meatime, what about C, D and E, where Because C then NOT B, and
Because D then Not B, and
Because E then not B.