"The Doctrine of the Trinity teaches that within the unity of the one Godhead there are three separate persons who are coequal in power, nature, and eternity"

The Doctrine of the Trinity is a fundamental belief of Christianity, which states that God is one being, however exists in 3 individuals: the Father, the Son, and the Holy Spirit. These three persons are coequal in power, nature, and eternity, suggesting that they are all equally powerful, have the exact same nature, and are everlasting. This means that everyone of the Trinity is fully God, which they are all one God. This teaching is essential to Christianity because it highlights the unity of God, while likewise recognizing the diversity of each person of the Trinity. It also helps to discuss the relationship in between God and Jesus, and how Jesus can be both completely God and completely human. The Doctrine of the Trinity is a complicated principle, but it is vital to understanding the Christian faith.