Pope Benedict XVI can expect some pissed off Tweets this week.
The head of the Roman Catholic Church said this week that gay marriage poses a threat to "justice and peace." He also called same-sex marriage "unnatural."
The 85-year-old Pontiff kicked off the Christmas season on Friday afternoon with the traditional lighting of the tree in Vatican City's St. Peter's Square.
There, he released the Pope's message for World Day of Peace 2013. In his annual address, he that same-sex marriage is "against human nature."
According to reports, he said the following: