Falwell has linked his 24,000-strong congregation with the conservative, Florida-based conservative legal organization, Liberty Counsel in what he calls the "Friend or Foe Christmas Campaign," the Boston Herald reported.
In his weekly e-mail to 500,000 people, Falwell called for resistance to such groups as the American Civil Liberties Union "and others who intimidate school and government officials by spreading misinformation about Christmas."
Mathew Staver, Liberty Counsel's president and general counsel said the move was to counter the banning of singing Christmas carols and stripping the Yule season of its roots.
"Calling a Christmas tree a holiday tree isn't being inclusive," Staver said. "It's disenfranchising people of faith. It's like calling a menorah a candle stick."