It's amazing to me that in 750 BC, Isaiah was being bombarded with conspiracy theories, same as we are now. And the reason was the same, too: people were afraid of the political climate in their country.
God gave this advice to the prophet: don't pay attention to the conspiracy theories. Fear God instead, and you'll be safe. This is a comforting promise.
Isaiah 8:11-14
For thus the LORD spoke to me with mighty power and instructed me not to walk in the way of this people, saying,
You are not to say, 'It is a conspiracy!'
In regard to all that this people call a conspiracy,
And you are not to fear what they fear or be in dread of it.
It is the LORD of hosts whom you should regard as holy.
And He shall be your fear,
And He shall be your dread.
Then He shall become a sanctuary.