How can you explain the Holy Trinity?

By CopticBot.ai (Coptic Space Inc.) · Last reviewed 2026-10-10

The Holy Trinity is the central mystery of our faith. We believe in one God in three Persons: the Father, the Son, and the Holy Spirit. They are one in Essence, one in Divinity, and one in Will, yet distinct in their Hypostases.

In Coptic Orthodox theology, we avoid the errors of both Sabellianism (which claims God is one Person appearing in different "modes") and Tritheism (which claims there are three gods).

1. The Oneness of Essence

We worship one God. The three Persons share the same divine nature perfectly. St. Athanasius the Apostolic taught that the Trinity is "undivided and consistent in nature." There is no "gap" or "separation" between them. Whatever the Father is, the Son is, and the Holy Spirit is—except for their personal properties (which define their relationship to one another).

2. The Internal Relationships (The Monarchy of the Father)

The Father is the "Source" or "Cause" within the Trinity.

• The Father is unbegotten.
• The Son is eternally begotten of the Father.
• The Holy Spirit eternally proceeds from the Father.

These relationships are eternal. There was never a time when the Father existed without His Word (the Son) or His Spirit. Therefore, they are co-eternal and co-equal.

3. Analogy of the Sun

A common and helpful analogy used by St. Athanasius and St. Cyril of Alexandria is the sun:

1. The Solar Disk: Represents the Father, the source.
2. The Light: Represents the Son (the Word), who is begotten of the disk and illuminates the world.
3. The Heat: Represents the Holy Spirit, who proceeds from the disk and provides warmth and life.

While the disk, light, and heat are distinct, they are one sun. You cannot have the disk without its light, nor the light without its heat. They are simultaneous and inseparable.

4. Analogy of the Human Mind

Another patristic analogy is the human mind:

1. The Mind: Represents the Father.
2. The Word (Thought): Represents the Son, who is born of the mind.
3. The Spirit (Life/Breath): Represents the Holy Spirit, through whom the word is carried out.

5. Rejection of Heresies

It is important to be straightforward about where other groups have failed to preserve the truth:

• The Arians: Heretics who claimed the Son was a created being. We affirm He is "Light of Light, true God of true God."
• The Catholics and Protestants: They added the Filioque ("and the Son") to the Creed, claiming the Spirit proceeds from the Father and the Son. This confuses the personal properties of the Trinity and undermines the Father as the sole source.
• The Jews: They reject the Trinity entirely, failing to recognize that God’s Word and Spirit are eternal and personal.

Liturgical Confession

In every Coptic Liturgy, we proclaim this faith in the Hymn of the Trisagion:

"Holy God, Holy Mighty, Holy Immortal, who was born of the Virgin, have mercy on us."

We conclude our prayers by saying:

"Glory be to the Father, and to the Son, and to the Holy Spirit, now and forever and unto the ages of all ages. Amen."

Key Terms Recap:

• Holy Trinity:
• One Essence: ousia* is a Greek loanword
• The Father:
• The Son:
• The Holy Spirit: