Hmmm, i don't know how well that'll work. It doesn't seem like a strong case to me. That, and i'd have to be carrying a KJV Bible along (i like my TNIV Bible), since other Bibles translate that verse differently (without the word "repented"), and, last i heard, NIV is still the popular one.
I see not the word "regret(ted)" in:
5162. nacham, naw-kham'; a prim. root; prop. to sigh, i.e. breathe strongly; by impl. to be sorry, i.e. (in a favorable sense) to pity, console, or (reflex.) rue; or (unfavorably) to avenge (oneself): --comfort (self), ease [one's self], repent (-er, -ing, self).
I have been told that God says such a thing for His Will to be fulfilled, and according to the story His Will does get fulfilled with such help, but it may imply lying--telling others He grieves, but didn't really. This is where i get stuck.
Thanks for you help, though.