At the National Prayer Breakfast, President Obama reminded attendees that violence rooted in religion isn’t exclusive to Islam, but has been carried out by Christians as well.

Obama said that even though religion is a source for good around the world, there will always be people willing to “hijack religion for their own murderous ends.”

“Unless we get on our high horse and think this is unique to some other place, remember that during the Crusades and the Inquisition, people committed terrible deeds in the name of Christ,” Obama said. “In our home country, slavery and Jim Crow all too often was justified in the name of Christ.”

Obama also denounced Islamic State terrorists for professing to stand up for Islam when they were actually “betraying it.”

“We see ISIL, a brutal vicious death cult that in the name of religion carries out unspeakable acts of barbarism,” he said criticizing them for “claiming the mantle of religious authority for such actions.”