In Christianity, God is believed to be the eternal, supreme being who created and preserves all things. Most Christians believe in a monotheistic, trinitarian conception of God, which is both transcendent and immanent. Most Christians believe in a singular God that exists in a Trinity, which consists of three persons: God the Father, God the Son, and God the Holy Spirit. Christian teachings on the transcendence, immanence, and involvement of God in the world and his love for humanity exclude the belief that God is of the same substance as the created universe but accept that God the Son assumed hypostatically united human nature, thus becoming man in a unique event known as "the Incarnation".

Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus Christ. It is the world's largest and most widespread religion with roughly 2.4 billion followers, comprising around 31.2% of the world population. Its adherents, known as Christians, are estimated to make up a majority of the population in 157 countries and territories. Christians believe that Jesus Christ is the Son of God, whose coming as the Messiah was prophesied in the Hebrew Bible and chronicled in the New Testament.