As for the days of our life, they contain seventy years,
Or if due to strength, eighty years (Psalm 90:10)
Yet you do not know what your life will be like tomorrow. You are just a vapor that appears for a little while and then vanishes away. (James 4:14)
Then the Lord said, “My Spirit shall not strive with man forever, because he also is flesh; nevertheless his days shall be one hundred and twenty years.” (Genesis 6:3)
“Since his days are determined, The number of his months is with You; And his limits You have set so that he cannot pass. (Job 14:5)
We all know people who died young and many who live what we call average 70-90 years, and some who live even much older. I went to a funeral today of a man who left a legacy that included great-great-great grandchildren.
The lifespan of some was several hundred years at times in the Old Testament, but God has shortened that in the last age, and today, 100 is a pretty amazing milestone that few get to pass. But whether we are given 20, 40, 60 or 100, how many years we get isn't as important as what we do with them.
"Be very careful, then, how you live—not as unwise but as wise, making the most of every opportunity, because the days are evil. Therefore do not be foolish, but understand what the Lord’s will is. (Eph 5:15-17) God has a plan for us all to fulfill, and while He may give us 70 or 80 years to get around to it, He may NOT either!
"...now is the time of God’s favor, now is the day of salvation." 2 Cor 6:2) We should all make the most of right now, because none of us are promised another sunrise.