“All flesh is grass. . . . The grass withers. . . . But the word of our God will stand for ever” (Is 40:6-8 RSV). Similarly, the psalmist says, “Your word, O LORD, is eternal; it stands firm in the heavens. . . . All your commands are true. . . . You established them to last forever” (Ps 119:89, 151-52).
