Episode 4: Three in One, Seriously?
Christians believe in one God, yet they speak of the Father, the Son, and the Holy Spirit. Does Christianity teach that there are three gods? Is the Trinity a contradiction, or is it a mystery that can be meaningfully understood?
In Episode 4 of Theology in Plain Words, Dr. Susan Agbenoto and Faith Simplified author Aaron Armstrong explore one of Christianity’s most profound doctrines. The Trinity means that there is one God who eternally exists as three distinct persons: the Father, the Son, and the Holy Spirit. Each person is fully and equally God, yet there remains only one God.
Drawing from Matthew 3:13–17, they examine the baptism of Jesus, where the Son is baptized, the Holy Spirit descends like a dove, and the Father speaks from heaven. This remarkable moment reveals the three persons acting distinctly while remaining perfectly united.
The conversation also explains why familiar illustrations involving eggs, water, or other created things ultimately fall short. Nothing else in creation exists exactly as God does. The Trinity can be faithfully described from Scripture, but it cannot be reduced to a perfect human analogy.
Why does this doctrine matter? Because understanding how God has revealed Himself shapes everything else Christians believe. The Trinity shows us that relationship and love have always existed within God Himself. We were not created because God was lonely or incomplete, but because He freely chose to invite us into the love and fellowship He has eternally enjoyed.
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Credits and Sources
Aaron Armstrong, Faith Simplified (Harvest House, 2025).
Wayne Grudem, Christian Beliefs, revised edition (Zondervan Academic, 2022).
Wayne Grudem and Erik Thoennes, Systematic Theology Laminated Sheet (Zondervan Academic, 2020).
Erik Thoennes, Life’s Biggest Questions (Crossway, 2011).
Wayne Grudem, Systematic Theology, second edition (Zondervan Academic, 2020).