How do I get him to go to therapy?

My husband is very charming, he charms everyone; fools everyone else with his wit... but when he doesn't get his way, he turns into a yelling screaming nightmare. Two weeks ago, at 3am he woke me up because he couldn't find something that he was looking for before he went to work, he went into a rage and threw some clothes at me while I was in bed, so i threw it back. He then jumped up onto the bed and stood over me with his fist tight and his shoes were on. I put my foot on his chest to stop him from coming closer to me, as he was screaming and cursing at me. My young boys, daughter and dog heard the commotion and she came into our room; my daughter pulled him off me and got in his face, I jumped out of bed and got between them. He left and has been sleeping in the basement ever since. He's said that everything is my fault, the arguments have been escalating because he says that I am the cause of all of his problems, I don't listen, I prevented him from going back to school, which is not true... I went to a highly respected university while I was working full time for years. He constantly brings up my education and compares it in almost every argument... I love my husband, but it is painful to be in this relationship when he refuses to get help. His raging is getting worse, the kids are afraid, I am afraid to say anything when he starts because no matter what I say I'm wrong and he just gets worse and keeps yelling; he's punched holes in doors and broke things in the house. He has difficult relationships with both his mom and dad, and siblings; it'sonly been like this for the last few years. He keeps saying that he wants to go...and I've told him to go if he wants... but he refuses to go... He's accused me of cheating which I am not but because I started going to the gym and have lost 2 dress sizes he says there has to be a reason (getting healthier isn't good enough); but I've caught him cheating in the past and forgave him... I just don't know what to do to get him to see a therapist, we need to go if we're going to heal... but I just don't know what else to do or say...