What does Genesis 9:29 mean?
Early men such as Adam, Seth, and Methuselah are credited with lifespans of more than nine hundred years. Noah, however, will be the last to live such a long life. Genesis chapter 11 describes the genealogies of mankind from Noah through to the next major patriarch: Abraham. Over that time period, spanning just eight generations, the length of human lives plummets. Even the great prophet Moses will live to be just 120 years old, while his brother Aaron will live to be 123.This figure of 120 years becomes more or less the maximum lifespan for humanity on the post-flood earth. For this reason, many scholars believe that God's remark about striving with man (Genesis 6:3) was a reference to God purposefully limiting the length of a human life. If so, this was in no small part meant to limit man's ability to inflict evil and violence on the earth (Genesis 6:5).