I wan to get my husband a green card i am an american born here an he is an illegal alien we have 8yrs marry?

I want to get my Husband a green card I am an american born here an he is an illegal alien we have been ,marry for about 8 years and we have not file for anything because we are afraid he will be deported he cross with a family pass port many years ago he even has a california ID of when he was smaller can any one help please i dont know what i should do