Isaiah 40:6-7

A voice says, Cry [prophesy]! And I said, What shall I cry? [The voice answered, Proclaim:] All flesh is as frail as grass, and all that makes it attractive [its kindness, its goodwill, its mercy from God, its glory and comeliness, however good] is transitory, like the flower of the field. The grass withers, the flower fades, when the breath of the Lord blows upon it; surely [all] the people are like grass.