Christianity is a monotheistic religion [1] based on the life and teachings of Jesus of N [2] Adherents of the Christian faith are known as C [3] Christianity teaches Jesus is the Son of God, God having become human and the savior of Because of this, Christians commonly refer to Jesus as Christ or M [4] The three largest groups in the world of Christianity are the Roman Catholic Church, the Eastern Orthodox churches, and the various churches of P As of the early 21st century, Christianity has around 2billion [ 基督教是一神论的宗教,建立在拿撒勒人耶稣的生活和教训基础上的。持有基督教信仰的人被称为基督徒。基督教信仰耶稣是上帝的儿子,是上帝取了人的样式来到世上并且成了人类的救赎主。因此,基督徒相信耶稣就是基督或弥赛亚。基督教的三大教派是天主教,本世纪初期,基督教信徒的人数已达到22亿。