Bible Discussion Thread

I recently spoke with a Christian man that has theologian friends that dig through scripture intensely and he told me that the tribe of Naphtali when they fought in battle on King David's side ,was made up of a Nephilim hybrid, half man and half lion. I looked up the word "Nephilim" in an encyclopedic version of the King James Bible that I inherited from my mother when she passed away, and the word Nephilim says next to it, to refer to " Naphtali". I know GOD destroyed the world by the flood the first time, because everyone except Noah and his family was genetically altered in that fallen angels had sex with human women and produced a race of giants but it saddens me that mankind is so depraved in the mind that even after that they just kept interbreeding with animals. Can such a creature be redeemed if they have the capability to choose to fight in a war on GOD'S side with David? Would a creature like this have a soul? I'm just asking because I believe that is what a "Bigfoot" is. (a Nephilim hybrid)