Peter explained, “Men and brethren, let me freely speak unto you of the patriarch David, that he is both dead and buried, and his sepulchre is with us unto this day. Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne; He seeing this before spake of the resurrection of Christ, that his soul was not left in hell, neither his flesh did see corruption. This Jesus hath God raised up, whereof we all are witnesses…. For David is not ascended into the heavens: but he saith himself, The LORD said unto my Lord, Sit thou on my right hand, Until I make thy foes thy footstool” (Acts 2:29-35).
Here we learn that King David, the man who killed the giant, Goliath, has not yet gone to heaven. This would make sense if what Jesus said is true, that David will be rewarded at the resurrection of the just at the second coming of Christ. This is exactly what David believed would happen, for he wrote, “As for me, I will behold thy face in righteousness: I shall be satisfied, when I awake, with thy likeness” (Psalms 17:15).