Isaiah 40:6-7

Amplified Bible

⁶ 
A voice says, “Call out [prophesy].”
Then he answered, “What shall I call out?”
[The voice answered:] All humanity is [as frail as] grass, and all that makes it attractive [its charm, its loveliness] is [momentary] like the flower of the field.
⁷ 
The grass withers, the flower fades,
When the breath of the Lord blows upon it;
Most certainly [all] the people are [like] grass.