They quickly got to claiming that the verses in Genesis are a polemic by the Priestly source of the Bible. In other words, they hold by the Documentary Hypothesis. While not Catholic, I doubt that suggesting that Genesis is merely a P polemic (and not the word of God) would really convince the Church, so I don't really get their game here. Can anyone enlighten me on this?
Hey, I've been summoned by @Rival. I'm currently exercising, so this will just be a quickie from me for now
I'd have to re-read the relevant paragraphs of the report, as I just skimmed it yesterday, but my understanding is that you are correct.
Whether or not the idea of “in-built” fertility/reproduction is a merely distinctive concern of the Priestly account of creation (henceforth “P”, assuming that this particular scholarly theory on the composition of Genesis is correct, which I leave to the scholars' determination and debate), it doesn't alter the fact that the divine command/blessing in Genesis 1:28a (“Be fruitful, increase in number, fill the earth”) is inerrant scripture as given in the text, no matter if it originated as a priestly 'polemic' or not.
If true - that this is a unique addition or preoccupation of 'P' - then that recognition would certainly help us better understand how the human agent(s), used by God as His amanuensis/ses, got around to compiling the present account in Genesis as we have it, but it would not change the significance or revealed nature of the text as given, which is the Word of God.
This is because, the "doctrine of the inerrancy of scripture" is de fide in the Catholic Church, as expressed by the Second Vatican Council: "The books of Scripture must be acknowledged as teaching solidly, faithfully and without error that truth which God wanted put into sacred writings for the sake of salvation."
I'll get back to this later, though, when I have the time to refresh myself on the actual argument in the study (and I'm not, preferably, pumping iron ️ )