Do you have a vehicle? If so, go get your other kids and get out. Don't go back to that house.
If you don't, sit tight, get an order of Protection on behalf of you and the kids. He will have x amount of time to get the other kids back to you.
It will work out.
Stop trusting him. Stop acting out of fear. He can't harm you or your kids. Keep reminding yourself of that b/c it's true. In the end, you will win out. You will be fine. Your kids will be fine.
Take pics of your bruised arms. Did he belittle you in front of the neighbor? If so, ask him/her to come with you when you speak to the judge or to write down what s/he saw and heard and have it notarized.
You'll be fine. Your kids will be fine.
Remember: You don't need his permission to do anything. He recognizes that he has power in this equation. All the power b/c you keep waiting on him to do something in order for you to make a move. Take your power back! You don't need him or his permission. Go to a women's shelter if you have to, just know that YOU ARE FIERCE. And, he is nothing. He knows it, that's why he's acting this way. Buck up, chica. It's going to be hard, no matter what he says or does. He will fight to keep his possessions. He will fight to keep his life.
You must fight, too.
Be smart, be strong, and get out. You'll be fine.