David, though a person of the Old Testament, was one who had a quiet, firm and full hope of the resurrection of the dead and of eternal life and glory.
Hope and confidence in God delivers a joy to the soul, a gladness that is found in speech and a quietness that comes from a body absorbed in peace. To be destitute of the help of God can only result in sorrow and torment. Trusting in God delivers us, and fills our hearts with joy – one that is promised, one that we can be full of, and one that cannot be taken away from us. It means that we fall under the protection of God – it is because of this that we are still anxious and tremble – for we still have sorrows, but in the midst of them we can rejoice for there are no troubles so great that can break the peace that God gives to us. The promise of the resurrection goes one step further – the hope that is promised to the soul is also made to the body – so God protects them both.
That is what makes a Christian’s definition of hope – it is not a wish – it is a solid, concrete promise that is based on God’s Word.
So Peter, noticed something in David’s writings too. As David was expressing his own hope in God, it would seem that he expressed things that only the Holy Spirit could have expressed. David saw things far into the future regarding the promised Messiah knowing somehow that he would still have the opportunity of experiencing something more in the future.
For David says concerning him, ‘I saw the Lord always before me, for he is at my right hand that I may not be shaken; therefore my heart was glad, and my tongue rejoiced; moreover my flesh will dwell in hope. For thou wilt not abandon my soul to Hades, nor let thy Holy One see corruption. Thou hast made known to me the ways of life; thou wilt make me full of gladness with thy presence.’ – Acts 2:25-28