If you are behind on your credit card payments can they foreclose on your house?

Only if the credit card an "equity line of credit" which is secured by a second mortgage on the property.

USUALLY IF YOU CONTINUE MAKING PAYMENTS NO LEGAL ACTION WILL BE TAKEN...THE ONLY WAY ANYONE CAN TAKE A HOME IS IF THEY FIRST SUE YOU AND WIN A JUDGEMENT. THEN IF THEY TRY COLLECTING ON THE JUDGEMENT AND THERE IS REASONABLE ENOUGH EQUITY IN YOUR HOME, THEY COULD FORCE IT FOR SALE OR JUST PUT A LIEN ON IT. PLEASE IF YOU GET ISSUED A SUMMONS, GET LEGAL HELP. EVEN IF YOU LOSE THERE ARE ACTIONS YOU CAN TAKE TO VOID JUDGEMENTS FROM THE COURT, ETC.

They can not force you to sell your house. This guy (the last poster) doesn't know what he is talking about. Credit Card Debt is UNSECURED which means they can not force you to sell your house to pay the debt.