The Orthodox faith believes that the fundamental truth of the Orthodox Church is the faith revealed in the True God: the Holy Trinity of the Father, the Son, and the Holy Ghost.

The Catholic faith believes that the mystery of the Most Holy Trinity is the central mystery of the Christian faith and of Christian life.

The Methodist faith believes in the one living and true God... Within this unity there are three persons of one essential nature, power and eternity--the Father, the Son and the Holy Spirit.

The Presbyterian faith simply believes in one triune God.

The Lutheran faith teach that the one true God. is the Father and the Son and the Holy Ghost, three distinct persons, but of one and the same divine essence, equal in power, equal in eternity, equal in majesty, because each person possesses the one divine essence.