Scientific knowledge tells us that brains die quite quickly. Jesus died. And stayed dead.<quoted text>
Um.... Please tell the class what "scientific knowledge" has developed a way of testing Jesus' abilities.
You can't validate a religious claim with another religious claim.
Prosecutor: John Smith murdered the victim!
Defense: John Smith has an alibi. He was 1000 miles away.
Prosecutor: John Smith can teleport!
Defense: There's no evidence of John Smith, or anyone, being able to teleport.
Prosecutor: John Smith is a god, so he can!
I bet that argument would hold up well.