God as Trinity

The doctrine of the Trinity — that God is one being in three persons: Father, Son, and Holy Spirit — is the central and most distinctive doctrine of Christianity. It distinguishes Christianity from both Judaism and Islam, and it has generated some of the most intense theological debates in the history of the Church. This lesson examines the biblical roots, historical development, and theological significance of trinitarian belief.

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The Biblical Foundations

The word "Trinity" does not appear in the Bible. The doctrine was developed by the early Church as it reflected on the New Testament's testimony about Jesus and the Holy Spirit.