1.- Matthew 28:19, the 3 names baptism (Father, Son, Spirit); which are no actual names, for God is called YaHWeH, and Christ Yeshua (derived "Jesus"). That 3 name formula was added to the 4th century Bible of the Roman Catholic Church. From the 3rd century letters of Eusebius we know that the 3 names formula was not there, quoted from a written Matthew Gospel. That will also be the reason why the Roman Catholic Church started burning written Gospels!
The unadulterated, original Text here says: "Go out and make disciples of all nations".
2. 1John 5:7-8, was forged by Erasmus under threat from the Church Fathers. This falsification also referring to RCC "Father, Son and Spirit who would be 1", was suddenly added by Erasmus to his earlier versions without this falsification resulting in his later versions. This forgery is known as "the Comma Johanneum" or in English "Johanine Comma".
The unadulterated, original Text says here: "There are therefore three witnesses: the Spirit, the water, and the blood, and these three witnesses agree."
3. John 1:1 was changed very subtly, namely by omitting the word "Ho" from "Theos" where it says that "Logos" was with the "Ho Theos". In other words, that "the Word was with the (Most) God. Then you also understand verse 2 that states "so the (Word) was with God" [not with itself].
The unadulterated, original Text says here: "In the beginning was the Word. The Word was with the Most High God, and the Word was god (eternally living)."
4. Alpha and Omega were added to Jesus in several places, especially in references to the End Times and Second Coming in order to make him God.
5. Nouns, adjectives, adjectives, possessive pronouns, etc. referring to the son of God are suddenly capitalized, but at the same time referring to God with lowercase letters. This is done to make Christ more important and God less important, so that they would be one and the same...
It is striking that proponents of these forgeries in favor of the triune godhead doctrine also like to take as a starting point the emotional exclamation of Thomas ("my Lord, my God") or very cryptic statements or incorrect translations.
Why deny what Christ plainly says himself in John 17:3 and John 14:1? Eternal life by faith in 1 true God (YHWH) and in 1 Lord Jesus sent by God. So believe in God and in the Lord Jesus. Only then life eternal says John17:3. Only then are you saved says Romans 10:9.
Not believing what Christ Himself says and/or not believing accordingly (in 1 true God and in 1 Lord Jesus) is not possible for Christians [but for church members with the Triune godhead or Biune godhead apparently it is...]*
* Note at 2: Christ receives from God a Revelation states Revelation 1:1 so Christ clearly does not know what only God does know.
So there is NO question of a 3 unity godhead or a 2 unity godhead who has the same power and knowledge!
Read more: the occult origin of the ecclesiastical triune godhead.