After arguing that we can be confident that Jesus did rise from the dead, the question begs to be asked: Why did Jesus do all this? I think we can let the Bible answer that.
“…Christ died for our sins…” (1 Corinthians 15:3)
“Who, being in very nature God, did not consider equality with God something to be grasped, but made himself nothing, taking the very nature of a servant, being made in human likeness. And being found in appearance as a man, he humbled himself and became obedient to death— even death on a cross!” (Philippians 2:6-8)
“… he was pierced for our transgressions, he was crushed for our iniquities; the punishment that brought us peace was upon him, and by his wounds we are healed.We all, like sheep, have gone astray, each of us has turned to his own way; and the Lord has laid on him the iniquity of us all.” (Isaiah 53:5-6)
“…for all have sinned and fall short of the glory of God, and are justified freely by his grace through the redemption that came by Christ Jesus.” (Romans 3:23-24)
“For the wages of sin is death, but the gift of God is eternal life in Christ Jesus our Lord.” (Romans 6:23)
“… if you confess with your mouth, ‘Jesus is Lord,’ and believe in your heart that God raised him from the dead, you will be saved. … for, ‘Everyone who calls on the name of the Lord will be saved.’” (Romans 10:9, 13)