Then why did he have the symbols of Christ covered up when he spoke at Georgetown?
Georgetown University says it covered over the monogram “IHS”--symbolizing the name of Jesus Christ—because it was inscribed on a pediment on the stage where President Obama spoke at the university on Tuesday and the White House had asked Georgetown to cover up all signs and symbols there. From here.
He had the symbols covered up because he didn’t want to be seen as advocating a particular religion. You know how leftists are about not wanting to offend the sensibilities of the Other — Muslims, Jews, atheists, Buddhists, etc. Also because his leftwing base wouldn’t have liked it.