Visual Aids for Illustrating the Doctrine of the Trinity
The doctrine of the Trinity, though the word itself is not found in Scripture, describes the unity of God as subsisting in three distinct Persons: the Father, the Son, and the Holy Spirit [1]. This concept has been a cornerstone of Christian theology, articulated in creeds such as the Nicene Creed, which affirms belief in "one Lord Jesus Christ, the only-begotten Son of God, begotten of the Father before all worlds; God of God, Light of Light, very God of very God; begotten, not made, being of one substance with the Father" [7]. The Athanasian Creed further emphasizes that "in this Trinity none is afore or after other" [5].
Throughout Christian history, various visual aids and analogies have been employed to help explain this complex doctrine, though many have been recognized as imperfect or potentially misleading. Tertullian, an early Church Father, used natural objects to illustrate the Trinity, drawing comparisons to the root, shrub, and fruit; the fountain, river, and cut from the river; or the sun, ray, and the terminating point of the ray [6]. These analogies attempt to convey both distinctness and unity.
One common analogy is water existing as solid (ice), liquid (water), and gas (steam). While this illustrates three forms of one substance, it can be problematic because it suggests God changes modes, which is a heresy known as modalism. Another frequently used image is a three-leaf clover, where each leaf is distinct yet part of a single clover. This analogy, however, can imply three separate gods (tritheism) rather than one God in three persons. Similarly, an egg (shell, white, yolk) or an apple (skin, flesh, core) are sometimes used, but they also risk misrepresenting the co-equal and co-eternal nature of the divine Persons.
The shield of the Trinity, also known as the Scutum Fidei, is a more formal diagram that visually represents the relationships between the Father, Son, and Holy Spirit. It typically shows three circles or ovals, each labeled "Father," "Son," and "Holy Spirit," connected by lines to a central circle labeled "God." The lines state "is not" between the Persons (e.g., "The Father is not the Son") and "is" between each Person and God (e.g., "The Father is God"). This diagram aims to affirm both the distinctness of the Persons and their shared divinity.
Despite the widespread use of such illustrations, theologians have often cautioned against relying too heavily on them due to their inherent limitations. Thomas Aquinas, for instance, noted that it is fitting for Holy Scripture to use comparisons with material things to convey divine truths, as human knowledge originates from sensible objects [9]. However, the infinite nature of God makes any finite analogy inadequate. John Calvin, in his commentary on Genesis, frequently refers to the divine nature without resorting to visual aids, focusing instead on scriptural exposition [2, 4]. John Chrysostom, an Eastern Orthodox Father, similarly emphasizes scriptural understanding over illustrative analogies [3].
The challenge in using visual aids for the Trinity lies in avoiding heresies such as partialism (where each Person is only a part of God), modalism (where God appears in different modes), or tritheism (three separate gods). The Nicene Creed's affirmation of the Son being "of one substance with the Father" is crucial in maintaining the unity of God while acknowledging the distinct Persons [7]. The Anglican Articles of Religion affirm the Nicene Creed, along with the Athanasian and Apostles' Creeds, as thoroughly to be received and believed, as they can be proved by "most certain warrants of holy Scripture" [8].
Sources
- Easton's Bible Dictionary “Easton's Bible Dictionary: Trinity — A word not found in Scripture, but used to express the doctrine of the unity of God as subsisting in three distinct Persons. This word is derived from the Gr. trias, first used by Theophilus (A.D. 168-183), or from the Lat. trinitas, first used by Tertullian (A.D. 220), to express this doctrine. The propositions involved in the doctrine are these: 1. That God is one, and that there is but one God (Deut. 6:4; 1 Kings 8:60; Isa. 44:6; Mark 12:29, 32; John 10:30). 2. That the Father is a distinct divine Person (hypostasis, subsistentia, persona, suppositum int”
- CCEL (Reformed) “Calvin, Commentary on Genesis, Vol. 1 (Gen 1-23), section 28.1: Index of Scripture References Genesis 1:1-6 1:1-31 1:2 1:28 1:29-30 2:1 2:1-25 2:15 2:19 3:1 3:1-24 3:7 3:16 4:1 4:1-26 4:7 5:1 5:1-32 6:1 6:1-22 6:11-16 7:1-24 7:11 8:1-22 9:1 9:1 9:1-29 9:2 9:24 10 10:1 10:1 10:1-32 10:21 11:1 11:1 11:1-32 11:28 12:1 12:1 12:1 12:1-20 12:4 12:4 12:6 13:1 13:1-20 14:1-24 15:1-21 15:7 16:1-16 16:2 16:8 17:1 17:1 17:1 17:1 17:1-27 18:1 18:1 18:1-33 18:19 19:1-38 20:1 20:1 20:1-18 21:1-34 21:15 22:1-24 22:18 23:1-20 24:31 25:1 25:13-16 35:7 48:1 Exodus 6:3 12:40 Leviticus 7:18 17:4 18:25 Numbers 6:2”
- CCEL/NPNF (Eastern Orthodox) “John Chrysostom, Homilies on Galatians–Colossians–Thessalonians: Index of Scripture References Genesis 1:11 1:11 1:26 1:26 1:26 1:27 1:27 1:27 1:31 1:31 2:2 2:7 2:17 2:17 2:18 2:23 2:24 2:24 2:24 3:5 3:16 3:24 4 4:9 4:14 6:2 6:3 6:4 6:9 6:12 7:7 8:21 12:1 12:4 12:16 13:10 13:10-11 14:14 14:21-23 15:16 16:5 16:6 17:8 18:11 18:12 18:14 18:21 19:13 19:14 19:24 21:10 21:12 21:12 22:7-8 22:16 22:18 22:18 24:1-67 24:22 24:65 25:21 25:21 26:4 27:46 28:1 28:13 31:42 31:45 32:48 35:18 37:9-10 37:20 39:1 39:6 40:4 40:7 40:8 40:14-15 40:22 41 41:16 42:36 43:14 43:30 45:5 48:15-16 49:9 64:28 Exodus 2:11 2”
- CCEL (Reformed) “Calvin, Commentary on Isaiah, Vol. 1, section 23.4: 29:10 30:9 30:9 31:34 32:18 33:15 41:5 48:7 48:13 48:29 48:30 48:32 48:32 48:32 48:34 Lamentations 2:22 3:22 Ezekiel 4:16 13:9 18:20 20:22 34:23 34:23 36:25 37:11 37:12 37:16 37:24 37:24 47:1 47:1 Daniel 2:44 7:10 7:14 7:27 9:24 9:27 Hosea 2:5 2:13 2:18 2:19 2:20 2:23 3:4 3:5 6:6 13:11 14:2 14:9 Joel 2:31 2:32 2:32 Amos 2:4 2:5 3:11 5:11 5:18 5:20 5:21 6:11 9:11 9:11 Jonah 1:2 3:10 Micah 1:16 5:10 6:7 6:8 7:8 Habakkuk 1:16 2:2 2:2 Zephaniah 1:5 1:7 Haggai 2:9 Zechariah 2:8 2:8 3:2 6:12 Malachi 2:10 4:3 4:4 Matthew 1:5 3:2 4:15 4:16 5:10 5:11 ”
- 2 Corinthians (Presbyterian) “Jamieson, Fausset & Brown on 2 Corinthians 13:14: The benediction which proves the doctrine of the Divine Trinity in unity. "The grace of Christ" comes first, for it is only by it we come to "the love of God" the Father (Joh 14:6). The variety in the order of Persons proves that "in this Trinity none is afore or after other" [Athanasian Creed]. communion--joint fellowship, or participation, in the same Holy Ghost, which joins in one catholic Church, His temple, both Jews and Gentiles. Whoever has "the fellowship of the Holy Ghost," has also "the grace of our Lord Jesus Christ," and "the love”
- Schaff ANF/NPNF (Patristic) “ANF Vol 3: Tertullian — ELUCIDATIONS. (part 1): I (Sundry doctrinal statements of Tertullian. See p. 601 (et seqq.), supra.) I am glad for many reasons that Dr. Holmes appends the following from Bishop Kaye's Account of the Writings of Tertullian: "On the doctrine of the blessed Trinity, in order to explain his meaning Tertullian borrows illustrations from natural objects. The three Persons of the Trinity stand to each other in the relation of the root, the shrub, and the fruit; of the fountain, the river, and the cut from the river; of the sun, the ray, and the terminating point of the ray. F”
- Nicene Creed (Ecumenical) “Nicene Creed (Ecumenical, 325/381 AD), Section 2: And in one Lord Jesus Christ, the only-begotten Son of God, begotten of the Father before all worlds; God of God, Light of Light, very God of very God; begotten, not made, being of one substance with the Father, by whom all things were made. Who, for us men and for our salvation, came down from heaven, and was incarnate by the Holy Spirit of the virgin Mary, and was made man; and was crucified also for us under Pontius Pilate; He suffered and was buried; and the third day He rose again, according to the Scriptures; and ascended into heaven, and”
- Thirty-Nine Articles of Religion (Anglican) “Thirty-Nine Articles of Religion (Anglican, 1571), Section 223: The Three Creeds, Nicene Creed, Athanasius's Creed, and that which is commonly called the Apostles' Creed, ought thoroughly to be received and believed: for they may be proved by most certain warrants of holy Scripture.”
- theology (Catholic (Scholastic)) “Aquinas, Summa Theologica, First Part (Prima Pars), The Nature and Extent of Sacred Doctrine, Art. 9: Article: Whether Holy Scripture should use metaphors? I answer that, It is befitting Holy Writ to put forward divine and spiritual truths by means of comparisons with material things. For God provides for everything according to the capacity of its nature. Now it is natural to man to attain to intellectual truths through sensible objects, because all our knowledge originates from sense. Hence in Holy Writ, spiritual truths are fittingly taught under the likeness of material things. This is wha”