The grass withereth ... - This is repeated from the former verse for the sake of emphasis, or strong confirmation.

But the word of our God - The phrase 'word of our God,' refers either to his promise to be the protector and deliverer of his people in their captivity, or, in general, means that all his promises shall be firm and unchanging.

Shall stand for ever - Amidst all revolutions among men, his promise shall be firm. It shall not only live amidst the changes of dynasties, and the revolutions of empires, but it shall continue forever and ever. This is designed for support to an afflicted and oppressed people; and it must have been to them, in their bondage, the source of high consolation. But it is equally so now. Amidst all the changes on earth; the revolutions of empires; the vanishing of kingdoms, God is the same, and his promises are unfailing. We see the grass wither at the return of autumn, or in the drought: we see the flower of the field lose its beauty, and decay; we see man rejoicing in his vigor and his health, cut down in an instant; we see cities fall, and kingdoms lose their power and vanish from among nations, but God changes not. He presides in all these revolutions, and sits calm and unmoved amidst all these changes. Not one of his promises shall fail; and at the end of all the changes which human things shall undergo, Yahweh, the God of his people, will be the same.

The grass withereth, the flower fadeth,.... Which is repeated, to raise attention to it, as being a matter of importance, and for the confirmation of it:

but the word of our God shall stand for ever; the Apostle Peter adds, by way of explanation,

and this is the word, which by the Gospel is preached unto you; who seems to distinguish the word from the Gospel, by which it is preached, and to intend Christ the essential Word; who stands or abides for ever as a divine Person; in his office as Mediator, being Prophet, Priest, and King for ever; in the efficacy of his blood, righteousness, and sacrifice; and in the fulness of his grace: it is true of the written word or Gospel, which remains, is everlasting, and will stand and continue, notwithstanding the persecutions of tyrants, the craft of false teachers, the reproach of ungodly men, and the death of the best of men, even of ministers; though all flesh is grass, fading and withering, the word of God is fresh and lively, firm and durable; and so it is as transcribed into the hearts of men, where it becomes the ingrafted word, and issues in everlasting life. It may be applied to God's word of promise, which is for ever settled in heaven, and is always fulfilled.

The grass withereth, the flower fadeth: but the {m} word of our God shall stand for ever.

(m) Though considering the frailty of man's nature many of the Jews would perish, and so not be partakers of this deliverance, yet God's promise would be fulfilled, and they who remained, would feel the fruit of it.

40:1-11 All human life is a warfare; the Christian life is the most so; but the struggle will not last always. Troubles are removed in love, when sin is pardoned. In the great atonement of the death of Christ, the mercy of God is exercised to the glory of his justice. In Christ, and his sufferings, true penitents receive of the Lord's hand double for all their sins; for the satisfaction Christ made by his death was of infinite value. The prophet had some reference to the return of the Jews from Babylon. But this is a small event, compared with that pointed out by the Holy Ghost in the New Testament, when John the Baptist proclaimed the approach of Christ. When eastern princes marched through desert countries, ways were prepared for them, and hinderances removed. And may the Lord prepare our hearts by the teaching of his word and the convictions of his Spirit, that high and proud thoughts may be brought down, good desires planted, crooked and rugged tempers made straight and softened, and every hinderance removed, that we may be ready for his will on earth, and prepared for his heavenly kingdom. What are all that belongs to fallen man, or all that he does, but as the grass and the flower thereof! And what will all the titles and possessions of a dying sinner avail, when they leave him under condemnation! The word of the Lord can do that for us, which all flesh cannot. The glad tidings of the coming of Christ were to be sent forth to the ends of the earth. Satan is the strong man armed; but our Lord Jesus is stronger; and he shall proceed, and do all that he purposes. Christ is the good Shepherd; he shows tender care for young converts, weak believers, and those of a sorrowful spirit. By his word he requires no more service, and by his providence he inflicts no more trouble, than he will strengthen them for. May we know our Shepherd's voice, and follow him, proving ourselves his sheep.