Yeshayah 40:6-7

Orthodox Jewish Bible

⁶ The voice said, Preach. And he said, What shall I preach? All basar is khatzir (grass), and all the chesed (constancy) thereof is as the tzitz (flower, blossom) of the sadeh;

⁷ The khatzir (grass) withereth, the tzitz (flower, blossom) falleth; because the Ruach of Hashem bloweth upon it; surely the people is khatzir (grass).