What should I do if my husband always threatened me to quit my job to take of children? The last I did so, he not just don't give full support, he force me to move out of house with children and my elderly parents, so he can rent the house for income.

I think you need to talk to your hub on what he wants and his priority; taking care of children or more income. It doesn't make sense for u to quit your job and yet being forced out of your home. U can also look for a home based job or part time job if financially stretched.