Christianity is one of the world's largest religions with over 2 billion followers worldwide. It is based on the belief that Jesus Christ is the Messiah and Son of God. The core aspects of Christianity include its history and development over 2000 years, core beliefs and practices, and structures and regulations. Christianity's foundational texts are the Bible and creeds, and its core theological beliefs center around the Trinity, humanity's relationship with God, salvation, and eschatology. Core ethical teachings focus on love, morality, social justice, and the dignity of all people. Religious practices include worship, sacraments, prayer, and festivals. Churches are organized with local, national, and international structures and leadership.