How do we know the Trinity is true?

The truth of the Trinity is substantiated by both the authority of Scripture and the historical consensus of the church. While 1 John 5:7 provides specific evidence of the distinct persons within the Godhead, the doctrine is also supported by the consistent teachings found throughout both the Old and New Testaments. From the creation narrative in Genesis to the Great Commission in Matthew 28, we see the active participation of the Father, Son, and Holy Spirit.

In addition to biblical evidence, the historical teaching of the church has affirmed the Trinity across centuries. The early creeds and councils, such as the Nicene Creed, were established in response to various heresies and have safeguarded the doctrine of the Trinity. These collective affirmations help solidify our understanding of the Trinity as not only true but also essential for proper Christian doctrine. The functional roles of each person in the Trinity serve as a testament to their unity and distinctiveness as they execute the divine plan.