More than a week after some 150 prominent Christian leaders challenged Christians across the U.S. to stand up for their beliefs, thousands stepped forward to answer the call.

So far, more than 200,000 people have signed The Manhattan Declaration: A Call of Christian Conscience.

The 4,700 document written by Christian, Catholic and Orthodox leaders calls on believers to fight for traditional marriage, the unborn and religious liberty - even if that means breaking laws.

"Through the centuries, Christianity has taught that civil disobedience is not only permitted, but sometimes required," the document said.

Chuck Colson, co-author of the document, said he hopes more than one million people sign the manifesto.