How do you say “You’re all goin’ to hell and I’m not” graciously?
You can not say someone is going to hell. Only God knows if a person will be saved.
That being said, you must warn people of their condition without Christ. And everyone is in the same boat as far as that goes including the reformed Christian.
Apparently 24,000 different ways; and every one of them thinks that their method of handling the viper and biting the head off the rooster is the right one.