"Even A Miracle Needs A Hand" was sung by Kyle Broflovski and Stan Marsh in the Season Four episode, "A Very Crappy Christmas". This is a song by Rankin/Bass and Maury Laws that featured in their 1974 Christmas special Twas the Night Before Christmas.
Kyle: Now, don't go saying that. There's always hope. Miracles happen most every day.
To people like you, and me. But don't expect a miracle. Unless you help make it to be. You hope, and I'll hurry. You pray, and I'll plan We'll do what's necessary, 'cause Even a miracle needs a hand!
-And I'll labor.
-And I'll stand.
Kyle and Stan:
Get help from our next-door neighbor, 'cause
Kyle, Stan and the Hankey Family:
Even a miracle needs a hand!