He needs to get treatment as quickly as possible. You and your daughter also need to be safe and in as low a stress environment as possible. Here are some ideas:
Try to get him to go with you to see a psychiatrist or psychologist - find something that he can agree with you to see him about - it might be sleep issues, or stress, or anxiety or depression or not feeling good… just get him in there, prewarn the psychiatrist and share a much as you can with the psychiatrist before hand.
Here are some resources - do you have other family members that can help you. Educate everyone, and keep a journal about your husband’s behaviors and beliefs so that you can share it with the mental health professionals.
Study this document:
FIRST Aid for Psychosis
http://www.schizophrenia.com/sznews/archives/005561.html
How to get help:
Here is a good place to get your husband to, if you can: