Husband not calm

What should I do if my husband is angry a lot? I believe he has anxiety. Whenever tense, he starts screaming, gives everyone orders, and doesn’t let anyone talk. He does it by pointing out wrong things around the house, like: “Who let the door open? Right now, everyone, leave everything you are doing and come here. Call your mom to come here. Can you use your head to think? Flies will come into the house. Am I the only person who should reason?” And he goes on and on about small things.

I tried using a word like “Texas, “ which would mean that he needed to stop. But he gets even more mad.
He works from home.
Our kids are 3, 7, and 9 years old.
I tried to take the kids away to a different room or outside, but my kids were afraid of leaving with me because many times he attacked me, and whoever went with me got in trouble too.
So my kids usually “freeze “ when he starts doing that.

How should I set boundaries for me and the kids in such situations?
In the past, he used to manipulate me using anger. Whenever he started acting like that, I would do whatever he wanted. Right now, I am not. I learned to keep myself calm and carry on with my day happily, and I believe that he doesn’t like it. I tell him, “You are not calm,” or “No need to scream,” or “Tell us this information as a side note, no need to make a big deal out of it,” and he says, “ Who are you to tell me what to do?” Or “Are you trying to change me?”

So how do I keep myself and the kids out of it?
What kind of conversation should I have with him, and what type should I have with my kids?

Thank you for your guidance.