Acts 13:36 KJV - For David, after he had served his own generation by the will of God, fell on sleep, and was laid unto his fathers, and saw corruption:
It is beautiful to find that word sleep used of David's death. His life had been full of tumult, storm, and passion, of war and blood; many a revolt had cast its foam in his face; but rest came at last, as it will come to all. Like a tired infant's, those aged eyes closed in the last sleep, and the spirit joined the mighty dead. His sepulcher remained to the day of Pentecost, for Peter refers to it; but the man whom God had raised up was drinking of the river of his pleasures, and was satisfied as he awoke in his likeness. The fairest dreams of his Lord that had ever visited his soul fell short of the reality; and upon his aged face must have rested a look of glad surprise, as though the half had not been told.
The parallel between him and our Lord may be carried into minute particulars. In their anointing; their inimitable words; their sufferings; their zeal for the house of God; their love for their friends; their betrayal by those they had trusted; their wars; their love for Jerusalem - how much in common! But there the parallel stays. In his atoning death, in his incorruptible nature, in his glorious ascension, the Son of David stands alone. David himself, in the Spirit, called him Lord, and knew that he alone could fulfil that ideal of kingship which had passed before his inspired thought, given to him by the Holy Ghost, but which no mere mortal would ever be able to realize.
Psalm 72:6, 8, 12, 17 KJV - He shall come down like rain upon the mown grass: as showers [that] water the earth. ... He shall have dominion also from sea to sea, and from the river unto the ends of the earth. ... For he shall deliver the needy when he crieth; the poor also, and [him] that hath no helper. ... His name shall endure for ever: his name shall be continued as long as the sun: and [men] shall be blessed in him: all nations shall call him blessed.- as quoted from F.B. Meyer's David