Jesus says He is the resurrection - He can bring it forward to the present from the last day. He proves this by raising Lazarus to life. All who are in their tombs will one day hear His voice calling them out, as Lazarus does here.
The Jews are confounded. Jesus has escalated things greatly. They are now concerned about national unrest because of Jesus, which would lead to Roman retaliation and replacement of Jewish leaders... them. So they issue a warrant for His arrest. Caiaphas says He will have to die to preserve the nation, which is ironically true.