Psalm 39:4
"O Lord, help me understand my mortality and the brevity of life! Let me realize how quickly my life will pass!
Psalm 90:12
So teach us to consider our mortality, so that we might live wisely.
Psalm 119:84
How long must your servant endure this? When will you judge those who pursue me?
Job 14:13
"O that you would hide me in Sheol, and conceal me till your anger has passed! O that you would set me a time and then remember me!
Psalm 103:14
For he knows what we are made of; he realizes we are made of clay.