Genesis Chapter 6
3 And the LORD said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.
But how can this be you ask? Are there not humans who have lived longer than 120 years? Yes, there are several confirmed cases of people who have lived to the age of 121 and beyond. Jeanne Louise Calment is documented to have lived 122 years before she passed. So what did God mean?
The Lord never says man will die at 120 years, he simply says that His Spirit will not always strive with man. After that, we are on our own to fend off death. He will no longer send an Angel to keep us safe in that car accident. He will no longer use his ways to stop disease from overtaking our bodies. I know The Lord is with us all the time to protect us from harm, but after 120 years, he stands back and waits for us to come home, knowing that our physical bodies are only temporary.