This document summarizes key beliefs of Christianity including: - God exists as the Holy Trinity of three persons in one God and created the universe. - Jesus is the divine Son of God who had a true human nature and sacrificed himself on the cross for humanity's salvation. - Jesus rose from the dead on the third day and ascended to heaven, and will return to judge humanity. - The Holy Spirit is the third person of the Trinity, and believers will be judged after death and resurrected with their souls reunited to their bodies.