III. The difficult verse 5, whether its first and last clauses be taken interrogatively or negatively, in its central part bases the assurance of the coming of the king on God's covenant (2 Samuel vii.), which is glorified as being everlasting, provided with all requisites for its realisation, and therefore 'sure,' or perhaps 'preserved,' as if guarded by God's inviolable sanctity and faithfulness. The fulfilment of the dying saint's hopes depends on God's truth. Whatever sense might say, or doubt whisper, he silences them by gazing on that great Word. So we all have to do. If we found our hopes and forecasts on it, we can go down to the grave calmly, though they be not fulfilled, sure that 'no good thing can fail us of all that He hath spoken.' Living or dying, faith and hope must stay themselves on God's word. Happy they whose closing eyes see the form of the King, and whose last thoughts are of God's faithful promise! Happy they whose forecasts of the future, nearer or more remote, are shaped by His word! Happy they who, in the triumphant energy of such a faith, can with dying lips proclaim that His promises overlap, and contain, all their salvation and all their desire!
If we read the first and last clauses negatively, with Revised Version and others, they, as it were, surround the kernel of clear-eyed faith, in the middle of the verse, with a husk, not of doubt, but of consciousness how far the present is from fulfilling the great promise. The poor dying king looks back on the scandals of his later reign, on his own sin, on his children's lust, rebellion, and tragic deaths, and feels how far from the ideal he and they have been. He sees little token of growth toward realisation of that promise; but yet in spite of a stained past and a wintry present, he holds fast his confidence. That is the true temper of faith, which calls things that are not as though they were, and is hindered by no sense of unworthiness nor by any discouragements born of sense, from grasping with full assurance the promise of God. But the consensus of the most careful expositors inclines to take both clauses as questions, and then the meaning would be, 'Does not my house stand in such a relation to God that the righteous king will spring from it? It is, in this view, a triumphant question, expressing the strongest assurance, and the next clause would then lay bare the foundation of that relation of David's house as not its goodness, but God's covenant ('_for_ He hath made'). Similarly the last clause would be a triumphant question of certainty, asserting in the strongest manner that God would cause that future salvation for the world, which was wrapped up in the coming of the king, and in which the dying man was sure that he should somehow have a share, dead though he were, to blossom and grow, though he had to die as in the winter, before the buds began to swell. The assurance of immortality, and of a share in all the blessings to come, bursts from the lips that are so soon to be silent.
IV. But the oracle cannot end with painting only blessings as flowing from the king's reign. If he is to rule in righteousness and the fear of the Lord, then he must fight against evil. If his coming causes the tender grass to spring, it will quicken ugly growths too. The former representation is only half the truth; and the threatening of destruction for the evil is as much a part of the divine oracle as the other. Strictly, it is 'wickedness'--the abstract quality rather than the concrete persons who embody it--which is spoken of. May we recall the old distinction that God loves the sinner while He hates the sin? The picture is vivid. The wicked--and all the enemies of this King are wicked, in the prophet's view--are like some of these thorn-brakes, that cannot be laid hold of, even to root them out, but need to be attacked with sharp pruning-hooks on long shafts, or burned where they grow. There is a destructive side to the coming of the King, shadowed in every prophecy of him, and brought emphatically to prominence in his own descriptions of his reign and its final issues. It is a poor kindness to suppress that side of the truth. Thorns as well as tender grass spring up in the quickening beams; and the best commentary on the solemn words which close David's closing song is the saying of the King himself: 'In the time of the harvest I will say to the reapers, Gather up first the tares, and bind them in bundles to burn them.'