Definition: Three persons who share the nature of the one God, or one God revealed in three coequal coeternal coexistent distinct persons (not people).

 
One God – Monotheism (monos, “one, only” + theos, “God”)

 

It is a basic straw-man to imply monotheism opposes the Trinity—the foundation of the Trinity is ontological monotheism, it seems you may not be familiar as to the basics of the biblical doctrine of the Trinity. Unitarian or unipersonal groups (such as Muslims, Oneness Pentecostals, Jehovah’s Witnesses et al.) assume that every place “one,” “alone” etc. (in word or concept) are applied to God (e.g., Deut. 6:4; Isa. 44:24; Mark 12:29; 1 Tim. 2:5), the unitarians read into these passages a meaning of “one person” reinterpreting monotheism to mean unipersonalism, although, there is no passage in the OT or NT, which clearly identifies God as “one person.”

Unitarians are deeply confused between “being” and “person.” Simply, “being” (an ontological reference) is What something is, while “person” is Who something is. Scripture presents one eternal God (one Being) revealed in three distinct persons, the Father and the Son, and the Holy Spirit. Therefore, naturally and historically, the Christian church has steadfastly held to and affirmed the glorious Trinity and preexistence of the person of God the Son, Jesus Christ. 

 

 The Trinity is Essential Doctrinal

Essential doctrine is any doctrine that involves the person, nature, and finished work of Christ (gospel). Hence, since Jesus is God in the flesh, second person of the Trinity, the nature of God is the utmost highest essential doctrine (Hosea 6:6; John 4:24; 17:3; 1 John 2:22-23).    

The Trinity is The Foundation of The Gospel, it is the Mutual Operation of the three Persons that infallibly accomplishes the work of salvation—it is therefore the Triune God that Saves   

 

Biblical Data

 

  1. The OT presents a multi-personal God, not a unitarian one.

 

For example:

  1. The angel of the Lord (who was identified as YHWH (or YHWH- e.g., Gen. 22:9-14; Exod. 3:6-14; 23:20-21; Num. 22:21-35; Judg. 2:1-5; 6:11-22; 13:9-25; Zech. 1:12; etc.).
  2.  YHWH and interacted with YHWH (cf. Gen. 19:24). 
  3. The places where YHWH/God speaks in first person of YHWH/God in the third person (such as in Gen. 22:11-12; Isaiah 13:17-19; Jer. 50:40; Hosea 1:7; Amos 4:10-11).
  4. The numerous places where Plural terms are used of the one true God. Plural verbs, adjectives, and plural prepositions are used of God (cf. plural nouns – Gen. 1:26 [“Our image, likeness”]; plural verbs – Gen. 1:26; 2:18 [LXX]; 11:7; Isaiah 6:8; 54:5 [Heb., “Makers,” “Husbands”]; Psalm 149:2 and Job 35:10 [Heb., “Makers”]; Ecclesiastes 12:1 [Heb., “Creators”]; plural prepositions – Genesis 3:22 [“one of Us”]; and plural adjectives– Proverbs 30:3 [Heb. and LXX, “Holy Ones”]; Daniel 7:18, 22, 25, 27 [Heb., “Most Highs” or “Highest Ones”]; and many more could be mentioned. These examples can only be consistent with OT monotheism in the context of Trinitarianism—namely, three persons who share the nature of the One God.             

 

  1. The NT presents a triune God.

 

 Biblical Data Three Biblical Truths

  

I. There is only one God.  

II. There are three Persons or Selves that are presented as and called God: the Father, the Son and the Holy Spirit.  

III. The three divine persons are distinct from each other.

 

CONCLUSION: The three distinct persons share the nature or Being of the one true God – only Regenerate will accept (John 8:43, 47; 1 Cor. 1:18).

 

Scriptural References

I. There is one eternal God (cf. Deut. 6:4; Isa. 43:10; 44:6, 8; Jer. 10:10-11)—Not unitarianism, unipersonalism (monotheism means one God, not one person).

II. The three persons (or self-aware subjects) are presented as fully God—namely, the Father, the Son, and the Holy Spirit.

 

The Father – – (God and unipersonal; cf. Rom. 5:10; Gal. 1:3).

The Son, Jesus Christ, is called and presented as Theos, Kurios, and YHWH in a religious context in both the OT and NT (unipersonal).

The biblical evidence of the deity of the Son:  

 

 Old Testament—Jesus as God

 Angel of the Lord.

 Daniel 7:9-14—Son of Man.

 Isaiah 9:6: “For a child will be born to us, a son will be given to us; And the government will rest on His shoulders; And His name will be called Wonderful, Counselor, Mighty God, Eternal Father [lit., ‘father eternal’], Prince of Peace.”

 

New Testament—Jesus as God-man

  

  • Jesus was referred to as God/Lord, or being equal with God: John 1:1, 18; 20:28 (Ps 35:23, LXX); Romans 9:5; 1 Corinthians 2;8; Philippians 2:6-11; Colossians 2:9; Titus 2:13; 2 Peter 1:1; Hebrews 1:3, 8; 10-12 (Ps 102:25-27); Jude 1;4, 5

 

  • The Son is presented as Creator: John 1:3 (panta di’ autou egeneto, “all things through Him”); Colossians 1:16-17; Hebrews 1:10-12 (Kurie, “Lord”—Ps. 102:25-27 LXX; see also 1 Cor. 8:6; Heb. 1:2; 2:10).

 

  • Jesus claimed to be God: Matthew 12:6; John 5:17-18 (eluen, “breaking, loosing,” elegen, “kept calling”); John 10:30; Egw Eimi—John 8:24, 28, 58, 13:19; 18:5, 6, 8 (cf. Deut. 32:39; Isa. 41:4; 43:10; 48:12); First and the Last—Revelation 1:17, 2:8; 22:13: “I am the Alpha and the Omega, the First and the Last, the Beginning and the End” (cf. Isa. 41:4; 44:6; 48:12).      

 

  • Jesus was worshiped in a religious context: Matthew 14:33: “And those who were in the boat worshiped Him, saying, ‘You are certainly God’s Son.’”; John 9:35-39. Hebrews 1:6; Revelation 5:13-14: “And every created thing which is in heaven and on the earth and under the earth and on the sea, and all things in them, I heard saying, “To Him who sits on the throne, and to the Lamb, be blessing and honor and glory and dominion forever and ever.” 14 And the four living creatures kept saying, “Amen.” And the elders fell down and worshiped.”

 

The Holy Spirit is God (unipersonal):

 

The Holy Spirit also possesses the attributes of God:

  • Eternal, having neither beginning nor end (cf. Heb. 9:14),
  • Omnipresent, being everywhere at the same time (cf. Ps. 139:7).
  • Omniscient, understanding all things (cf. 1 Cor. 2:10-11).
  • Omnipotent (cf. Luke 1:35).

 

The Holy Spirit is a Person: – The Holy Spirit communicates and personal pronouns (“I,” “He”) are applied to Him. Acts 10:19-20: “While Peter was reflecting on the vision, the Spirit eipen autō, [“said to him”] – “Behold, three men are looking for you. 20 But get up, go downstairs and accompany them without misgivings, for egō (“I”) have sent them Myself” (cf. Acts 13:2; Heb. 3:7-11; 10:15-17).

Personal Pronouns (e.g. John 16:13-14); – Possesses “personal” attributes (e.g., He has a will (cf. 1 Cor. 12:9-11); Emotions (cf. Eph. 4:30); Intelligence in that He Investigates (cf. 1 Cor. 2:10-11; Rom. 8:27); He intercedes/prays (cf. Rom. 8:26); He can be lied to (cf. Acts 5:3); He can be blasphemed (cf. Mark 3:29-30); Again as seen above- He issues commands (cf. Acts 10:19-20; 13:4; Acts 16:6]; He gives love (cf. Rom. 15:30: “Now I urge you, brethren, by our Lord Jesus Christ and by the love of the Spirit, to strive together with me in your prayers to God for me”; He is also our paraklētos (“Advocate; cf. John chaps 14-16). 

 
 III. The Three Persons are Distinct from each other

 To recall: The Three Biblical Truths:  1) There is only one God 2) There are three Persons or Selves that are presented as and called God: the Father, the Son and the Holy Spirit and 3) The three divine persons are distinct from each other.

  The three Persons are Distinct from each other: Angel of the Lord; John 1:1b. 17:5; Matthew 28:19; 1 Corinthians 13:14; 1 John 1:3; 2 John 1:3; Revelation 5:13.

Passages such as Matthew 28:19; 1 Corinthians 13:14; 1 John 1:3; and Revelation 5:13 (and are many others) all distinguish the persons in the Trinity from each other. This is due to their grammatical construction—namely, the repetition of both the article (ho, “the”) and conjunction (kai, “and”).

 

Matthew 28:19: “Baptizing them in the name of the [tou] Father, and [kai] the [tou] Son, and [kai] the [tou] Holy Spirit.”

2 Corinthians 13:14: “The grace of the [tou] Lord Jesus Christ and [kai] the love of the [tou] God and [kai] the fellowship of the [tou] Holy Spirit with all of you.”

1 John 1:3: “Indeed our fellowship is with the [tou] Father and [kai] with the [tou] Son of Him Jesus Christ.”

Revelation 5:13:The [] One sitting upon the throne and [kai] to the [] Lamb, the blessing and the honor and the glory and the dominion into the ages of the ages.”

Lastly, note, we find at several places, NT authors citing Old Testament passages referring to YHWH and yet applies them to the Son (e.g., compare Ps. 102:25-27 with Heb. 1:10-12; Isa. 6:1-10 with John 12:39-41; Isa. 8:12-13 with 1 Pet. 3:14-15; Isa. 45:23 with Phil. 2:10-11; Joel 2:32 with Rom. 10:13). 

 

                                                                               In conclusion 

Scripture presents a tri-personal God. There is one God, and there are three distinct, coequal, coeternal, and coexistent, self-cognizant divine persons or Egos that share the nature of the one God—the Father, the Son, and the Holy Spirit. The Trinity is God’s highest revelation to mankind.

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