Christianity is a monotheistic religion centered on the life and teachings of Jesus Christ. It believes Jesus is the Son of God and the Messiah prophesied in the Hebrew Bible. Christians hold that Jesus died for humanity's sins and was resurrected, offering salvation. It is one of the largest religions in the world, with over 2 billion adherents. Major branches include Catholicism, Protestantism, and Eastern Orthodoxy. Core beliefs include the Trinity, divinity of Christ, salvation through faith, and that Jesus will return to judge all people.