The document discusses the message of the three angels from Revelation 14:6-12 that must be preached by the Remnant Church. This "everlasting gospel" is the message that Jesus died for our sins and was resurrected, bringing the hope of salvation through God's grace alone. It was planned before creation for all humanity. The Adventist Church was founded after the 1844 disappointment to fulfill Christ's command to preach this gospel worldwide. Members are called to dedicate themselves to continuing this global missionary work.