Read Matthew 23
You snakes! You brood of vipers!
After 7 woes to the Scribes and Pharisees and teachers of the law, Jesus was just getting warmed up.
Jesus challenged them: How will you escape being condemned to hell?
It truly was a rhetorical question. The only salvation is through Christ Jesus and these hypocrites had rejected him time and time again. There was no other option than the one they repeatedly rejected.
For I tell you, you will not see me again until you say, ‘Blessed is he who comes in the name of the Lord.’