He has risen

1 Corinthians 15:14

New American Standard Bible (NASB)

14 and if Christ has not been raised, then our preaching is vain, your faith also is vain.

Jesus christ said -  “I am the resurrection and the life. He who believes in Me, though he may die, he shall live."

Resurrection is one and the only one most important incident in the whole history of mankind. One one has ever proclaimed and have proved it, but only Jesus has. Jesus rose so that we may have hope in him, that our sins are forgiven and we can have an everlasting life through him.

There are many things happened on that day of Resurrection. Before that and after that. 

Joseph of Arimathea - Some of the characteristics:

He was Bold - Bold enough to as Pilate for the body of Christ and he acquired the permission.

Good And Honourable Man.

Waiting for the coming of the Kingdom of God.

He was a Rich Man.

A Disciple of Jesus.

He offered the tomb, which he prepared for himself.

The Denial of Peter was an other incident, Before resurrection.

The Seven Sayings on the Cross.

After the resurrection, Jesus first appeared to Mary:

Mark 16:9 NIV

When Jesus rose early on the first day of the week, he appeared first to Mary Magdalene, out of whom he had driven seven demons.

So here again, a women was chosen to proclaim the truth. To be an eye witness, a former sinner - who had demons.

The belief of Thomas:

John 20:25-28

New American Standard Bible (NASB)

25 So the other disciples were saying to him, “We have seen the Lord!” But he said to them, “Unless I see in His hands the imprint of the nails, and put my finger into the place of the nails, and put my hand into His side, I will not believe.”

26 After eight days His disciples were again inside, and Thomas with them. Jesus *came, the doors having been shut, and stood in their midst and said, “Peace be with you.” 27 Then He *said to Thomas, “Reach here with your finger, and see My hands; and reach here your hand and put it into My side; and do not be unbelieving, but believing.”28 Thomas answered and said to Him, “My Lord and my God!”

Ascension of Jesus - Many eye witness testify that after the resurrection, Jesus Christ was on the earth for 40 day and then ascended into the Heaven to be with the Father in Heaven.

Luke 22:69 NIV

But from now on, the Son of Man will be seated at the right hand of the mighty God."

Hebrews 12:2 NIV

fixing our eyes on Jesus, the pioneer and perfecter of faith. For the joy set before him he endured the cross, scorning its shame, and sat down at the right hand of the throne of God.