1. Jesus died (31-37)
As the Jews wanted to celebrate their Passover ceremony, the soldiers broke the legs of the two criminals. They did not do this to Jesus because he was already dead. Still one of them wanted to confirm his death by piercing his side. That brought a sudden flow of blood and water. That became a scientific evidence of his sure death. Thus fulfilled the scriptures, 'His legs would not be broken and he would be pierced by his side' (Ex 12:46; Zec 12:10). Jesus' death was according to God's plan and his prophecies for world salvation work.
2. Jesus was buried by Joseph and Nicodemus (38-42)
Witnessing Jesus' courageous death on the cross, forgiving sinners, made a secret disciple Joseph of Arimathea fearless. He boldly asked Pilate for the body of Jesus to bury him. He was ready to lose his social position as a Sanhedrin member. Nicodemus also became bold. He brought very expensive perfume to embalm Jesus' body. Jesus was well wrapped then buried in a new tomb hewn for the rich. This fulfilled the scriptures too. In the cross we see God's forgiveness for our sins and God's power to change sinners.