Isaiah 40:5-7

New Catholic Bible

⁵ Then the glory of the Lord will be revealed,
    and all mankind will see it together,
    for the mouth of the Lord has spoken.
⁶ A voice says, “Cry out!”
    I reply, “What shall I cry out?”
“All mortals are grass;
    they last no longer than the flowers of the field.
⁷ The grass withers, the flower fades,
    when the breath of the Lord falls upon them.
    Surely the people are grass.