Because, if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved. (Romans 10:9)
The meaning of the resurrection is that God is for us. He aims to close ranks with us. He aims to overcome all our sense of abandonment and alienation.
The resurrection of Jesus is God’s declaration to Israel and to the world that we cannot work our way to glory, but that he intends to do the impossible to get us there.
The resurrection is the promise of God that all who trust Jesus will be the beneficiaries of God’s power to lead us in paths of righteousness and through the valley of death.
Therefore, believing in your heart that God raised Jesus from the dead is much more than accepting a fact. It means being confident that God is for you, that he has closed ranks with you, that he is transforming your life, and that he will save you for eternal joy.
Believing in the resurrection means trusting in all the promises of life and hope and righteousness for which it stands.
It means being so confident of God’s power and love that no fear of worldly loss or greed for worldly gain will lure us to disobey his will.
That’s the difference between Satan and the saints. Oh, might God circumcise our hearts to love him and to rest in the resurrection of his Son.