Everything you need to understand or teach Eternity in Their Hearts by Don Richardson.
Don Richardson is a Christian missionary and scholar. He examines what he has learned about primitive groups of people, and compares it with what he reads in the Bible, and concludes that God has prepared these groups of people to receive the message of Jesus Christ. He sees this as the fulfillment of God's covenant with Abraham. Richardson says that God has generally revealed himself in the hearts of all people, but specially revealed himself to only a few.
Richardson tells the stories of many groups from around the world, examining their religious practices and beliefs, trying to find some common thread with Christianity. He talks of Epimenides, an ancient prophet from Crete who builds an altar in Athens to an unknown god. Many years later, the apostle Paul uses this as a jumping-off point to explain the message of Jesus. In the 1800s, various groups in Asia...
Eternity in Their Hearts Lesson Plans contain 144 pages of teaching material, including: