Again he recurs to the one thought which flows like a river of light through all the psalm--that all his help is in God. The names which he lovingly heaped together at the beginning are in part echoed in the close. "The Lord liveth, and blessed is my rock, and the God of my salvation is exalted." His deliverances have taught him to know a living God, swift to hear, active to help, in whom he lives, who has magnified His own name in that He has saved His servant. And as that blessed conviction is the sum of all his experience, so one glad vow expresses all his resolves, and thrills with the expectation which he had cherished even in his lonely exile, that the music of his psalm would one day echo through all the world. With lofty consciousness of his new dignity, and with lowly sense that it is God's gift, he emphatically names himself _His_ king, _His_ anointed, taking, as it were, his crown from his brows and laying it on the altar. With prophetic eye he looks onward, and sees the throne to which he had been led by a series of miracles enduring for ever, and the mercy of God sustaining the dominion of his house through all generations:-- (49) "Therefore will I give thanks to Thee among the nations, O Jehovah, And to Thy name will I strike the harp: (50) Who maketh great the deliverances of His king And executeth mercy for His anointed, For David and his seed for evermore." And what were his purposes for the future? Here is his answer, in a psalm which has been with considerable appropriateness regarded as a kind of manifesto of the principles which he intended should characterize his reign (Psa. ci.): "I will walk within my house with a perfect heart. I will set no wicked thing before mine eyes." For himself, he begins his reign with noble self-restraint, not meaning to make it a region of indulgence, but feeling that there is a law above his will, of which he is only the servant, and knowing that if his people and his public life are to be what they should be, his own personal and domestic life must be pure. As for his court and his ministers, he will make a clean sweep of the vermin who swarm and sting and buzz about a throne. The froward, the wicked, privy slanderers, proud hearts, crafty plotters, liars, and evil-doers he will not suffer--but "mine eyes shall be upon the faithful in the land; he that walketh in a perfect way, he shall serve me." He is fired with ambition, such as has brightened the beginning of many a reign which has darkened to cruelty and crime, to make his kingdom some faint image of God's, and to bring the actual Israel into conformity with its ancient Magna Charta, "Ye shall be to me a holy nation." And so, not knowing perhaps how hard a task he planned, and little dreaming of his own sore fall, he grasps the sword, resolved to use it for the terror of evil-doers, and vows, "I will early destroy all the wicked in the land, that I may cut