Some of Jerusalem’s rabbis are waging their own war on Christmas

In a letter faxed to hoteliers in Jerusalem, two of the city's chief rabbis warned against displaying Christmas trees on their premises. “As the secular year ends we want to remind you that erecting a Christmas tree in a hotel contravenes halacha [Jewish law] and that therefore it is clear that one should not erect [a tree] […]

Source: http://www.washingtonpost.com/blogs/worldviews/wp/2016/12/21/some-of-jerusalems-rabbis-are-waging-their-own-war-on-christmas/