The Attribute of God's Unity in Scripture and Tradition
The unity of God is a foundational attribute in biblical and theological tradition, asserting that there is only one God. This concept is expressed in various biblical texts, such as Deuteronomy 6:4, "Hear, O Israel: The Lord our God, the Lord is one," and Mark 12:29, which Jesus quotes [1, 2]. The oneness of God is a ground for exclusive obedience and supreme love towards Him [1].
The Old Testament consistently affirms God's singularity. Isaiah 44:6 declares, "I am the first and I am the last; besides me there is no God" [1]. This unity is also evident in God's works of creation and providence, and His unique possession of foreknowledge [1]. Jewish tradition, as seen in Ramban's commentary on Deuteronomy 6:4, interprets this verse as a refutation of those who propose multiple powers governing the universe, emphasizing that the declaration "I am the Eternal thy G-d" at Mount Sinai established God's singular authority [9].
In the New Testament, the apostles also assert God's unity. Paul writes in 1 Corinthians 8:4, "there is no God but one," and in Ephesians 4:6, "one God and Father of all" [1]. This doctrine is considered consistent with the deity of Christ and the Holy Spirit, as seen in passages like John 10:30 ("I and the Father are one") and 1 John 5:7 [1]. The concept of the Trinity, while not a word found in Scripture, is used to express the doctrine of God's unity subsisting in three distinct Persons: Father, Son, and Holy Spirit [2]. The "grace of Christ," "love of God" the Father, and "communion of the Holy Ghost" are presented together in benedictions, demonstrating the Divine Trinity in unity [8].
The unity of God is not merely a numerical statement but also implies the coherence and consistency of God's will and attributes [11]. Other attributes of God, such as His truth, power, and wisdom, are also described as singular and incomparable [3, 5, 6]. The unity of God extends to the unity of faith among believers, as Ephesians 4:13 speaks of coming "in the unity of the faith, and of the knowledge of the Son of God" [7]. This unity in Christ means that believers are made righteous, holy, and free through God's wisdom [10]. The concept of union with Christ also includes union with the Father, maintained through faith and obedience [4].
Sources
- Torrey's Topical Textbook “Torrey's Topical Textbook: Unity of God — A ground for obeying him exclusively -- De 4:39,40. A ground for loving him supremely -- De 6:4,5; Mr 12:29,30. Asserted by God himself. -- Isa 44:6,8; 45:18,21. Christ. -- Mr 12:29; Joh 17:3. Moses. -- De 4:39; 6:4. Apostles. -- 1Co 8:4,6; Eph 4:6; 1Ti 2:5. Consistent with the deity of Christ and of the Holy Spirit -- Joh 10:30; 1Jo 5:7; Joh 14:9-11. Exhibited in His greatness and wonderful works. -- 2Sa 7:22; Ps 86:10. His works of creation and providence. -- Isa 44:24; 45:5-8. His being alone possessed of fore-knowledge. -- Isa 46:9-11. His exercise”
- 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”
- Torrey's Topical Textbook “Torrey's Topical Textbook: Truth of God, The — Is one of his attributes -- De 32:4; Isa 65:16. Always goes before his face -- Ps 89:14. He keeps, for ever -- Ps 146:6. Described as Great. -- Ps 57:10. Plenteous. -- Ps 86:15. Abundant. -- Ex 34:6. Inviolable. -- Nu 23:19; Tit 1:2. Reaching to the clouds. -- Ps 57:10. Enduring to all generations. -- Ps 100:5. United with mercy in redemption -- Ps 85:10. Exhibited in his Counsels of old. -- Isa 25:1. Ways. -- Re 15:3. Works. -- Ps 33:4; 11:7; Da 4:37. Judicial statutes. -- Ps 19:9. Administration of justice. -- Ps 96:13. Word. -- Ps 119:160; Joh ”
- Torrey's Topical Textbook “Torrey's Topical Textbook: Union With Christ — As Head of the Church -- Eph 1:22,23; 4:15,16; Col 1:18. Christ prayed that all saints might have -- Joh 17:21,23. Described as Christ being in us. -- Eph 3:17; Col 1:27. Our being in Christ. -- 2Co 12:2; 1Jo 5:20. Includes union with the Father -- Joh 17:21; 1Jo 2:24. Is of God -- 1Co 1:30. Maintained by Faith. -- Ga 2:20; Eph 3:17. Abiding in him. -- Joh 15:4,7. His word abiding in us. -- Joh 15:7; 1Jo 2:24; 2Jo 1:9. Feeding on him. -- Joh 6:56. Obeying him. -- 1Jo 3:24. The Holy Spirit witnesses -- 1Jo 3:24. The gift of the Holy Spirit is an ev”
- Torrey's Topical Textbook “Torrey's Topical Textbook: Power of God, The — Is one of his attributes -- Ps 62:11. Expressed by the Voice of God. -- Ps 29:3,5; 68:33. Finger of God. -- Ex 8:19; Ps 8:3. Hand of God. -- Ex 9:3,15; Isa 48:13. Arm of God. -- Job 40:9; Isa 52:10. Thunder of his power. -- Job 26:14. Described as Great. -- Ps 79:11; Na 1:3. Strong. -- Ps 89:13; 136:12. Glorious. -- Ex 15:6; Isa 63:12. Mighty. -- Job 9:4; Ps 89:13. Everlasting. -- Isa 26:4; Ro 1:20. Sovereign. -- Ro 9:21. Effectual. -- Isa 43:13; Eph 3:7. Irresistible. -- De 32:39; Da 4:35. Incomparable. -- Ex 15:11,12; De 3:24; Job 40:9; Ps 89:8.”
- Torrey's Topical Textbook “Torrey's Topical Textbook: Wisdom of God, The — Is one of his attributes -- 1Sa 2:3; Job 9:4. Described as Perfect. -- Job 36:4; 37:16. Mighty. -- Job 36:5. Universal. -- Job 28:24; Da 2:22; Ac 15:18. Infinite. -- Ps 147:5; Ro 11:33. Unsearchable. -- Isa 40:28; Ro 11:33. Wonderful. -- Ps 139:6. Beyond human comprehension. -- Ps 139:6. Incomparable. -- Isa 44:7; Jer 10:7. Underived. -- Job 21:22; Isa 40:14. The gospel contains treasures of -- 1Co 2:7. Wisdom of saints is derived from -- Ezr 7:25. All human wisdom derived from -- Da 2:1. Saints ascribe to him -- Da 2:20. Exhibited in His works. ”
- King James Version “[KJV] Ephesians 4:13 — Till we all come in the unity of the faith, and of the knowledge of the Son of God, unto a perfect man, unto the measure of the stature of the fulness of Christ:”
- 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”
- Sefaria (Jewish (Kabbalistic/Philosophical)) “Ramban (Nachmanides) on Deuteronomy 6:4: HEAR, O ISRAEL: THE ETERNAL OUR G-D, THE ETERNAL IS ONE. This too is a commandment that offers explanation. For, already contained in the commandment I am the Eternal thy G-d , 211 Above 5:6. is [the principle of] the Unity of G-d. As the Rabbis have said: 212 Mechilta, Bachodesh 5. “Rabbi Nathan says: From here there is a refutation to those heretics who say there are two powers governing the universe. For, when the Holy One, blessed be He, stood on Mount Sinai and proclaimed I am the Eternal thy G-d , 211 Above 5:6. who protested against Him?” But her”
- 1 Corinthians (Protestant academic) “Tyndale House on 1 Corinthians 1:30: 1:30 When people are united . . . with Christ Jesus, God makes them righteous, holy, and free (see 6:11; Rom 3:21-26; 5:17-21). This work of Christ is an expression of God’s wisdom.”
- Matthew (Protestant academic) “Tyndale House on Matthew 22:40: 22:40 are based on: Jesus’ statement affirmed the unity and coherence of God’s will, as recorded in Scripture.”