All of Christianity hinges on the answer to this question. If there was no resurrection, there would be no Christianity. So what transformed 11 scared and dejected disciples into fearless ambassadors? It was Jesus’ return from the dead and subsequent ascension into heaven. There were over 500 witnesses to Jesus’ return to life after being crucified dead and buried.
Was he really dead? The Romans made no mistakes when they killed someone. They were experts at the art of death. So when a soldier wanted to hasten the death of a man who had already endured a terrible whipping and was bleeding from wounds in his hands and feet, an upward thrusting spear through a lung and into the heart would do the trick. So certain of his death were the soldiers that they didn’t break the legs of Jesus. That was the usual way Roman soldiers finished a crucifixion. They knew that once a man could no longer support himself with his legs, he would suffocate since he could no longer breathe. The soldiers also knew that Jesus wasn’t coming back to claim his robe, so they gambled to determine who would get it.
To ensure that Jesus would stay dead and that his disciples would not try to steal his body and claim he came back from the dead, the tomb was sealed and soldiers were tasked with guarding it. To fail to do so could result in their executions.
Yet, three days later, Jesus appeared to his disciples, to several women, to two men walking on the road to Emmaus, to a doubting Thomas and two others. Jesus was definitely dead and he was definitely resurrected.
His disciples witnessed his ascension into heaven. So yes, Jesus is definitely alive. It is his power and authority that holds every atom in the universe together. One day Jesus will return to earth just like he left it to rule and reign as King of kings. Given the events of these times, it could be soon. Are you ready? (see Matthew 25: 30-35)