Yearly God’s people celebrate the Resurrection of Jesus. It was a turning point in history. No Resurrection of Jesus means no Kingdom of God,
‘…Christ has indeed been raised from the dead, the first-fruits of those who have fallen asleep. For since death came through a man, the resurrection of the dead also comes through a man. For as in Adam all die, so in Christ all will be made alive.… Then the end will come, when He hands over the Kingdom to the Father after He has destroyed all dominion, authority and power.’ 1 Corinthians 15:20-24
Christ is the key to the eternal Kingdom but, there is another aspect.
Before His Crucifixion, Jesus was fully human and fully God. When He went to Galilee from Jerusalem, He had to walk. He became tired,
‘…and Jesus, tired as He was from the journey, sat down by the well….’ John 6:6
When He arose after His crucifixion and death, His body had changed. For example, two of Jesus’ followers were going to Emmaus. On their way Jesus joined them and feigned ignorance of the momentous events that took place in Jerusalem. They were surprised by His ‘ignorance’ and told Him about His crucifixion and the women who reported that they had seen Him alive. They invited Him to stay with them. While they were eating they suddenly recognized Him and He disappeared. Immediately they hurried back to Jerusalem to report it to the disciples. Then it happened,
”While they were still talking about this, Jesus Himself stood among them and said to them, ‘Peace be with you.'” Luke 24:36
The disciples thought they were seeing a ghost, but He reassured them,
‘Look at My hands and My feet. It is I Myself! Touch me and see; a ghost does not have flesh and bones, as you see I have.’ Luke 24:39
At another occasion, while the disciples were gathered,
‘Though the doors were locked, Jesus came and stood among them.’ John 20:26b
Jesus is alive and at His Father’s right hand in heaven.