Let him which is on the housetop not come down to take any thing out of his house.
From the en.wikipedia.org
On up to our housetop The reindeer they flew Pulling sled, the fat guy, and all his stuff too.
From the washingtonpost.com
On up to the housetop Old Santa he flew.
From the washingtonpost.com
The other is the appalling spectacle of the United States Senate, acting at its worst, pecking at the health-care reform bill, almost as we hear the reindeer hooves on the housetop.
From the post-gazette.com
More examples
The roof of a house; "shout it from the housetops"