I am not getting paid from my employer, he is always late paying us and now it's been 2 weeks and he won't give us any answers. What can i do?

I work for a contractor and we are suppose to get paid every 2 weeks. He said that sometimes our paychecks maybe 5 days late and it's always more than 5 days late. We normally get paid 7 to 10 days late but it's been 15 days and we still haven't been paid and our boss is saying it's gonna be next week. He has gotten paid, paid enough to pay his crew but he didn't. he told me he recieved a check last week but paid his personal bills with it. I'm tired of this, my credit has went down because I'm late with payments. I'm about to lose my house, my car is broke down and I can't pay to fix it. I need some advice.