I've seen this site but it was a while back. I think the interpretation of the passage upholding free-will is in error.
Quote
Deu 30:19 I call heaven and earth to record this day against you, that I have set before you life and death, blessing and cursing: therefore choose life, that both thou and thy seed may live: (KJV)
This is indeed a choice laid before all mankind. The passage does not declare that man will choose contrary to his nature. The assertion begins with a false understanding of mans will.
