Hello! Did you read that Gospel on Sunday?? (Mark 9:38-50) It was a biggie! Jesus was definitely upset. However, to discern what is at the heart of this passage takes a careful read. Last Sunday, I preached on Esther, but if you wondered about that Gospel, this is the post for you.
Read more about Gehenna here.
Primary source was the link above, and also Feasting on the Word Year B Volume 4, Proper 21.