The Massachusetts secretary of state's office says a man who told investors that the Holy Spirit guided his trading system has been charged with running a Ponzi scheme.

Secretary of State William Galvin said in a complaint filed Tuesday that Uxbridge resident Charles Erickson defrauded at least 25 investors out of about $3.5 million.

Authorities say about a third of those recruited for the program attended the same church as Erickson, who claimed the Holy Spirit had given him a proprietary day-trading system for a volatile type of futures contract. Authorities say he guaranteed returns of 96 percent over two years.

Galvin says Erickson was paying monthly returns using capital reserves deposited by later investors.

A woman who answered the phone at Erickson's home said they had no comment.