Psalms 144:4
Man is like a breath;
What it says
Man is like a breath, and his days are like a passing shadow.
What it is doing
This verse answers the question by stressing human frailty.
In context
1Of David. 2He is my steadfast love and my fortress, 3O LORD, what is man, that You regard him, 4Man is like a breath; 5Part Your heavens, O LORD, and come down; 6Flash forth Your lightning and scatter them; 7Reach down from on high; 8whose mouths speak falsehood, 9I will sing to You a new song, O God; 10to Him who gives victory to kings, 11Set me free and rescue me 12Then our sons will be like plants 13Our storehouses will be full, 14Our oxen will bear great loads. 15Blessed are the people of whom this is so;