5 Hear the word of the Lord, you who tremble at his word:“Your brothers who hate you and cast you out [supposedly] for my name's sake have said, ‘Let the Lord be glorified, that we may see your joy’; but it is they who shall be put to shame.
Isaiah 66

"Brothers" of the faith who cast out other brothers who fear the Lord, in the name of the Lord, will be put to shame. Like the Judaizers of old, who had a dead man-invented "orthodoxy," and in the name of that orthodoxy they "cast out" the true servants of God.

But, what happened to these when they cast out others in the name of thier OWN relegion?

“The sound of an uproar from the city!
A sound from the temple!
The sound of the Lord, rendering recompense to his enemies!
the Lord will come in fire, and his chariots like the whirlwind, to render his anger in fury, and his rebuke with flames of fire.16 For by fire will the Lord enter into judgment

They were destroyed in a fiery judgment that consumed themselves, their temple, and their city.

The modern day pharisees who have crept into the Christian community, and taken for themselves positions of authority, who "cast out" others in the name of "orthodoxy" shall I imagine, be treated no different then how God treated the Judaizer's of old.

Note: These "Jews" that were destroyed were NOT the church. They consisted of men who set themselves up over other individuals in certain communities. Even though the communites themselves were public, like the synogogues and other relgious forums of the day, people were still being "cast out" by those with this false authority.

Eg. Paul was cast out, so was James...Why? Because those in authority could not tolerate men speaking of things which may upset the rulers man-made "orthodox" relegion. You could speak about the scriptures, but, only in a way that could be regulated by them.