A battle is on for your soul. God's law, “The soul that sinneth, it shall die,” still stands. So if a person is to save his soul from death, he must be forgiven of his sins and stop sinning. But how is a person to prevail in this battle against sin?
Simply, we do not beat sin by fighting against sin. That is a works-based salvation–and it doesn't work. Instead, we overcome sin by surrendering to Jesus. Then, just as God fought for the children of Israel against the Amalekites, Jesus fights for the believer and vanquishes all sin.
The Apostle Paul takes this illustration one step further. He draws a comparison between the Christian and the children of Israel who died in the desert. To be in the desert is to be in sin. If you struggle in the desert all your life and refuse to let Jesus destroy all acts of sin in your life, you will die and go to hell. On the other hand, if you surrender to Jesus, you will enter his rest now and for eternity.
So are you still fighting your own battle? Or does your battle belong to Jesus?