"Sounds like we will make serious money," one executive wrote then of the situation.
Another 2007 e-mail from Goldman CEO Lloyd Blankfein referred to the company's plan to profit from so-called short sales, or bets that the market would go down.
"We lost money, then made more than we lost because of shorts," Blankfein wrote. "Also, it's not over."
Goldman Sachs said the committee "cherry-picked just four e-mails" and put them out of context.
The bank has pledged to vigorously defend its actions and will have a chance to do so Tuesday, when Blankfein will testify on Capitol Hill before a committee investigating the bank's actions as the real estate market came crashing down.