trinity['s concept] exists in the bible

(1) Jesus is called God, but since there is only one God, Jesus must be that one God or else he is a false God: The Scriptures proclaim that there is one, and only one God in all of existence. (Deu 4:35; Isa 43:10-11; 44:6, 8; 45:5-6, 14, 21-22; 46:9; Mal 2:10; Rom 3:30; 1 Cor 8:6; Eph 4:6; Jam 2:19) It also says that there is only one true God. (John 17:3; 1 John 5:20) This means that all other gods are false. Since there is only one God, then no other being can truly be a god. This is why they are false gods. Now, Scripture plainly identifies the Son as God in John 20:28. The term "my God" refers to the true God every other time it is used in the Bible, establishing the consistent linguistic use of the term. Thomas here calls Jesus in the Greek, ho kurious mou kai ho theos mou, literally, the Lord of me and the God of me. So John 20:28 calls Jesus the God of Thomas, and in verse 29 Jesus approves. Now since there is only one true God, either Jesus was the true God in John 20:28, or a false god. Which is it? I look forward to my opponents answer. But Jesus is also identified as God in Isaiah 9:6. So which is it: is he a true god, or a false god? If he is a true god, then he must be the Almighty, for there is only one true God, not two; if he is a false god, we are not saved, for no pretender could save us. I must at this point mention the Granville Sharp rule of Greek grammar. This rule states that when there are 2 nouns that are both singular which describe a person, and these nouns are connected by the word "and," the first noun having the article, the second noun not having the article then they refer to the SAME PERSON. (*Note that the nouns cannot be personal names*) There is absolutely no exception to this rule in all of the Greek New Testament. Having stated this rule I find it necessary to present two verses of scripture that unequivocally qualify Jesus as both God and Savior. Titus 2:13 - while we wait for the blessed hope"the glorious appearing of our great God and Savior, Jesus Christ, (NIV) 2Peter 1:1 - Simon Peter, a servant and apostle of Jesus Christ, To those who through the righteousness of our God and Savior Jesus Christ have received a faith as precious as ours: (NIV) Notice in both verses the noun "God" (theou) has the article (tou) and is connected to the second noun "Savior" (soteros) which does not have an article, by the word "and" (kai). Thus "God and Savior" both refer to the Person of Jesus. Grammatically this is irrefutable. So not only is Jesus Savior, He is God! So I think I have made a good case that Jesus is definitely God, and since there is only one God, then the Father and the Son must be one God. Now, onto the Holy Spirit. (2) There is only one Creator: the Father, Son and Holy Spirit: Isa 44:24 tells us that Yahweh made all things, streached out the heavens alone, spread out the earth by himself; yet Scripture reveals the Father as creator (Isa 64:8), and the Son (Col 1:16-17; Heb 1:2, 8-10), and the Holy Spirit (Ps 104:30; Job 26:13; 33:4) Combine this with the plural pronouns "us" and "our" in Genesis 1:16 and the trinitarian has an airtight case. If Jesus and the Holy Spirit are not one God with the Father, then God the Father had help and did not create all things alone, by himself, as he said in Isaiah 44:24. If the trinity is true, harmony comes to the texts. (3) God is the only Savior, so being the Savior means Jesus is God: At Isaiah 43:11 Yahweh declares, "I myself am Yahweh and besides me there is no Savior." (WEB) Scripture tells us plainly that Jesus is the Savior. (Matt 1:21; Lu 2:11; Acts 4:12; 2 Tim 1:10; Tit 1:4; 2 Pet 1:11, etc) So is Jesus Yahweh himself, or is he another Savior besides Yahweh? Which is it? If he is Yahweh, then he must be one Yahweh with the Father. For there is only one Yahweh. (Deu 6:4) If he is not Yahweh, then he is another savior besides Yahweh, and Yahweh was lying when he claimed to be the only Savior. Which is it? Acts 4:12 says of Jesus, that "there is no salvation in anyone else." Now, if Jesus is not God, then there can be no salvation in God, for there is no salvation in anyone else but Jesus. (4) The Holy Spirit has the attributes of God and is called God: That the Holy Spirt is God and Lord is clearly stated in the Scriptures. (Acts 5:3-4; 2 Cor 3:17) The Holy Spirit has the same attributes of diety as the Father and the Son: The Father is eternal (Ps 90:2), and the Son (Isa 9:6; Mic 5:2), and the Holy Spirit (Heb 9:14) The Father is omniscient (1 John 3:20), and the Son (John 16:30; 21:17), and the Holy Spirit (1 Cor 2:10-11) The Father is omnipresent (1 Kings 8:27; Ps 137:8-18), and the Son (Matt 18:20), and the Holy Spirit. (Ps 137:7) The Father is omnipotent (Dan 4:35), and the Son (Matt 28:18; John 17:10), and the Holy Spirit (Isa 40:12-18) (5) There is no one like God, but Jesus is just like God: In Isaiah 46:9 God says there is on one like him; but Jesus says if you have seen him, you have seen the Father, and Paul describes him as the image of God, and the impress image of his person. (John 14:6-9; Col 1:15; Hebrews 1:3) Summary: I have shown the deity or godhood of the Father, Son, and Holy Spirit from the Bible. I have also shown there is only one God from the Bible. Trinity proved.