"Page Does Not Exist"

Hello, I was reading a sermon by Coty Pinckney at this link: http://www.expository.org/rev5a.htm. A note at the bottom of Coty's sermon says he borrowed from a March 20, 2005, sermon from John Piper at this link: http://www.desiringgod.org/library/sermons/05/032005.html. When I click on this link I get a note that says the page does not exist. Can you help me find the sermon Coty is referring to?

Thanks very much,
Jerri Menges