They Got men to push a really big rock in front of the door. (i'm serious)
According to Matthew 28:2-3, an "angel of the Lord" sat on the rolled away stone of Jesus' tomb.
The Bible only records that a large stone was rolled overe the entrance to His tomb, as was the custom at that time.
The body of Jesus was rolled in a cloth , something like the Shroud of Turin.
The tomb's the Jews used were large enough to hold many bodies. His was the size of the average family's tomb. Imagine the size of the average bedroom in a house. That would be roughly the size of the tomb. The entrance was large with a big stone that could be rolled in front of the entrance. The rock was flattened like a wheel almost so it could roll easily considering its weight.
Jesus's tomb was safely secured by a very large and heavy stone. The killers of Jesus wanted to secure the body of Jesus because they didn't want anyone to steal his body. ( this is the info I have gotten/ can remember from the bible)
Jesus' body were laid in Joseph's ( a reputable member of the Sanhedrin) new rock-cut memorial tomb. Afterward, a large stone is rolled in front of the tomb. (Matthew 27:57-60; Mark 15:43-46; Luke 23:50-53; John 19:38-42) This tomb was situated in a garden near the place of Jesus' impalement.
As the tomb was closed and sealed by the roman governor, and anyone breaking it could face death. But there was a earhquake and the the very big rock of the tonb was rolled away.
Because its remembering when Jesus rose from the dead after he was crucified. Also the 'Easter Egg' represents the stone that was rolled away from the tomb.
Matthew 27:57-60 reads, "When it was evening, there came a rich man from Arimathea, named Joseph, who himself had also become a disciple of Jesus. This man went to Pilate and asked for the body of Jesus. Then Pilate ordered it to be given to him. And Joseph took the body and wrapped it in a clean linen cloth, and laid it in his own new tomb, which he had hewn out in the rock; and he rolled a large stone against the entrance of the tomb and went away."
Jesus was not in the tomb he had risen.
The song you are referring to is likely "He's Alive" by Dolly Parton. It is a gospel song that talks about Jesus rising from the dead and the stone being rolled back from his tomb.
The Jesus Family Tomb was created in 2007.