Christians worship a triune God: one God in three Persons of Father, Son and Holy Spirit. Since the term Trinity is found nowhere in the Bible, some people think it is an invention of Christians to justify their worship of Jesus Christ as God.

The doctrine of the Trinity was formally developed in the early church in reaction to false teaching on the nature of God which was found in Arianism. Arianism attempted to protect monotheism (the belief in one God) by denying the full deity of Jesus, a belief most Christians held at this time. Arianism taught that Jesus was divine, but that he was a lesser deity than the Father. To affirm the Church’s stance on the nature of God, the Trinity was formally stated in the Nicene Creed (325 A.D.) and the later Athanasian Creed. As a result of these early ecumenical creeds, any departure from the Christian doctrine of the Trinity was considered heresy. These creeds affirm the early Christian conviction that Jesus was God. The false doctrine of Arianism caused the church to officially affirm what was already believed and inherent in the earliest of Christian theology.

As you study the Bible more, you will find the Trinity concept throughout its pages. Reading Genesis, you will note that the Spirit of God was hovering over the waters as God created the heavens and the earth. Later on the narrative becomes plural, “Let US make man (people) in OUR image;… male and female He created them.” So all three Persons of the Trinity were present in creation of the earth. This is affirmed elsewhere in the Bible as Jesus is mentioned as Creator. God is one, yet has three distinct Persons in complete unity. Mind-blowing, but it is what we accept as Christians because it is what the Bible reveals about God.

For sure the ancient creeds (Nicene and Athanasian) affirm the truth of what Christians have long believed about the Triune God. Many good hymns also affirm this, for example Holy, Holy Holy.

I don’t have enough faith to be an atheist. I do have faith enough to be a Christian, though I struggle sometimes to understand theological concepts like the Trinity. John Piper explains it better than I can.

We just had a beautiful weekend here in Michigan and observed “the blooming garb of spring,” one of the lines from Fairest Lord Jesus. Some people like to sing it in the original German. For me, it takes more faith to be an atheist and believe all the natural beauty of the heavens and earth came via time and chance than to believe in a loving Creator, Who also sent His only Son to save this beautiful but fallen world from its rebellion against Him.