For David says concerning Him:
‘I foresaw the Lord always before my face,
For He is at my right hand, that I may not be shaken.Therefore my heart rejoiced, and my tongue was glad;
Moreover my flesh also will rest in hope.For You will not leave my soul in Hades,
Nor will You allow Your Holy One to see corruption.You have made known to me the ways of life;
You will make me full of joy in Your presence.’
“Men and brethren, let me speak freely to you of the patriarch David, that he is both dead and buried, and his tomb is with us to this day. Therefore, being a prophet, and knowing that God had sworn with an oath to him that of the fruit of his body, according to the flesh, He would raise up the Christ to sit on his throne, he, foreseeing this, spoke concerning the resurrection of the Christ, that His soul was not left in Hades, nor did His flesh see corruption. This Jesus God has raised up, of which we are all witnesses. (Acts 2:25-32)
In his message to the people on the day of Pentecost, Peter quotes from Psalm 16. He then uses these words to do a little teaching. In Peter's statement, we learn that, in some of David's psalms, the poet wasn't always speaking of himself, but was in fact prophesying. Such is the case here, in which David declares, "You will not leave my soul in Hades, nor will You allow Your Holy One to see corruption." As Peter points out, David is dead, and his body long since rotted away.
God liked David a whole lot, even calling him a man after his own heart. Yet even David was not above corruption and sin. Even David was subject to sickness and, ultimately, death.
But Jesus is the Lord over life and death. His resurrection is the sign of that Lordship. Unlike us, who are beholden to death, our Messiah is death's master. It answers to Him. And because our Savior is Lord over even death, He is able to free us from its bonds as well.
This, indeed, is our hope: that in Christ, we are not subject to death forever, but can be given new life. Our hope is for nothing so paltry as life in this temporary world, but an Eternity in the sight of a loving, living God.