Psalm 78:39
For he remembered that they were only flesh, a passing wind that doesn't return.
Genesis 6:3
So the LORD said, "My Spirit won't remain with human beings forever, because they're truly mortal. Their lifespan will be 120 years."
Job 7:7
Remember that my life is a breath; my eyes won't go back to seeing good things.
James 4:14
You do not know what tomorrow will bring. What is your life? You are a mist that appears for a little while and then vanishes.
Job 7:16
I hate the thought of living forever! Leave me alone, because my days are pointless."
Job 10:9
""Please remember that you've made me like clay and you'll return me to dust.
Psalm 103:14-16
For he knows how we were formed, aware that we were made from dust.
John 3:6
What is born of the flesh is flesh, and what is born of the Spirit is spirit.