Organizers of the International Day for the Unreached (IDU), set for May 20, say the urgency to reach people who don’t know Jesus is underscored by the study, Translating the Great Commission. The study found 51 percent of those questioned weren’t familiar with the Great Commission. Now in its third year, IDU is supported by an alliance of 11 missions and other Christian organizations 2 billion-plus people have yet to hear about Jesus.

Find out more about IDU.