In 1 Corinthians 15:12-19, Paul addresses people in his church who have been saying, "How can Christ have risen from the dead? Dead people don't rise again!"
In answering this objection, Paul shows us just how central the resurrection of Jesus Christ is to the Christian faith. If Christ did not rise from the dead, then...
...Christian faith is futile (v14, v17)
...preaching the Gospel is useless (v14)
...all of us Christians are spreading lies as false witnesses about God (15)
...Jesus can't save you from your sins and you need to find some other way to deal with the sin in your life (v17)
...since Jesus couldn't do what he promise he would do (rise from the dead), then you need to question everything else Jesus said and promised (v17)
...those Christians who died before us are lost for eternity (v18)
...there is no assurance of heaven through Christ (v19)
...Christianity is just another religion following a dead leader, a positive thinking philosophy to help you while you're alive on earth (v19), and
...we are to be pitied more than anyone else for believing what we believe (v19).
But on the other hand, if Jesus did in fact rise from the dead, then...
...Christian faith stands on a foundation that no other faith, religion or philosophy can claim
...you can trust what Jesus has to say about life, death and eternity.
...Jesus' words have more weight than any person who claimed to know something about life, death and eternity but never rose from the dead
...you can have confidence that Jesus Christ has saved you from your sins and will bring you to heaven, since Jesus has conquered death and death's scariest weapon, sin
...we can have assurance that those Christians who died before us are safe in heaven today, and that we will see them again
...we can have assurance that when we die, God will raise us up also (see 1 Corinthians 6:14)
...we need not fear any problem or challenge we face in life, because if Christ conquered man's two biggest problems -- sin and death -- how will he not also help us conquer every other much smaller problem we face
...preaching the Gospel of Jesus Christ is the most important thing we can do in this lifetime
Thank You Lord Jesus for the all-surpassing hope we have because You rose from the dead. You changed the entire game when You resurrected. Thank You for calling us to Your side. There's no better, happier or safer place to be -- both now and for eternity. Use us Lord to call the nations to Your side as well. In the mighty name of Jesus we pray, AMEN!