By “the least reached” we mean unreached people groups.
The Lausanne Committee has defined a people group as “the largest group within which the Gospel can spread as a church planting movement without encountering barriers of understanding or acceptance” (source).
According to Joshua Project, “An unreached or least-reached people is a people group among which there is no indigenous community of believing Christians with adequate numbers and resources to evangelize this people group without outside assistance” (source). Further, these groups are “less than 2% Evangelical and less than 5% Christian Adherent” (source).
Focusing on the unreached dovetails with Jamison and Kathryne’s vision. Jamison wrote,”It burdens us to know that over 126 million people in Japan don’t have Who we have. We cherish Jesus Christ. We know that he is worthy of love, trust, adoration and obedience, no matter what people group you belong to or culture you identify with. We simply want to play a small part in bringing these things about for people in Japan. We want Jesus Christ for Japan. That’s what ‘the joy of Japan’ really means” (source).
He was right. Only 1.2% of the Japanese are professing Christians, and only 0.3% are Evangelical (source).