Psalms 103:14-16

103:14 For he knows what we are made of;

he realizes we are made of clay.

103:15 A person’s life is like grass.

Like a flower in the field it flourishes,

103:16 but when the hot wind blows by, it disappears,

and one can no longer even spot the place where it once grew.

Genesis 6:3

6:3 So the Lord said, “My spirit will not remain in humankind indefinitely, since they are mortal. They will remain for 120 more years.”

John 3:6

3:6 What is born of the flesh is flesh, and what is born of the Spirit is spirit.