'I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.' - Galileo Galilei
There is no trinity in the mystical Catholic sense of three coequal coeternal beings in one as adopted by the First Council of Nicaea in 325AD. The Catholic Encyclopedia, the trinity section of which can be found at: http://www.newadvent.org/cathen/15047a.htm defines the trinity as follows:
The Trinity is the term employed to signify the central doctrine of the Christian religion -- the truth that in the unity of the Godhead there are Three Persons, the Father, the Son, and the Holy Spirit, these Three Persons being truly distinct one from another. Thus, in the words of the Athanasian Creed:
"The Father is God, the Son is God, and the Holy Spirit is God, and yet there are not three Gods but one God."
In this Trinity of Persons the Son is begotten of the Father by an eternal generation, and the Holy Spirit proceeds by an eternal procession from the Father and the Son. Yet, notwithstanding this difference as to origin, the Persons are co-eternal and co-equal: all alike are uncreated and omnipotent. This, the Church teaches, is the revelation regarding God's nature which Jesus Christ, the Son of God, came upon earth to deliver to the world: and which she proposes to man as the foundation of her whole dogmatic system.
This is quite obviously not well defined in the mathematical sense and therefore non existent. It is a definition of the form:
The trinity is a Hotel in North London with a South London Postcode (There is no such Hotel). The trinity is an odd number which is divisible by two (There is no such number). The trinity has a size that is three times larger than one yet equal to one (There is no such size).
A son has to be created, and so since the trinity defines a son as being uncreated, it defines nothing.
Three does not equal one, since the trinity defines three as being to one, it defines nothing.
At this point any reader who has studied either Mathematics or Logic will not need to read any further to know that the trinity just does not exist.
Isaac Newton used arguments such as these to King James when he persuaded the King to waive his obligation as Lucasian Professor of Mathematics at Cambridge to sign an attestation to the Trinity (Newton - Cohen & Westfall, Isaac Newton - Michael White, The life of Isaac Newton - Westfall) for Newton's own arguments - see [C12.1]. There is no Trinity in the Catholic Church sense. This is not a trivial matter. In the days of Isaac Newton (1642-1727) both the Catholic Church and the Church of England were infected by this deception. This meant that every Christian in England was an idolater of a non existent illogical contrivance of man (or of Satan). Newton knew this and it caused him very serious psychological problems indeed. He thought he was in the position of Elijah, the only one left who had not bent the knee to Baal, a false God. Paul explains:
2 God did not reject his people, whom he first recognized. Why, do you not know what the Scripture says in connection with Elijah, as
he pleads with God against Israel?
3 Lord, they have killed your prophets, they have dug up your altars, and I alone am left, and they are looking for my soul.
4 Yet, what does the divine pronouncement say to him? I have left 7,000 men over for myself, [men] who have not bent the knee to Baal.
5 In this way, therefore, at the present season also a remnant has turned up according to a choosing due to undeserved kindness (Romans 11)
The remnant in Paul's day were the Jews who became Christians, by virtue of their understanding of the scriptures, and their faith in Jesus. Newton believed that the Christians in his day were facing the same problem that the Jews both in Paul's day and in Elijah's day were facing. He was right.
The Trinity doctrine was debated and adopted by the early church at the church council of Nicaea in 325 AD. It was not taught or preached or known by the apostles, who lived 3 centuries before. The debate was between Arius who opposed it and Athanasius who proposed it. Arius lost the debate and then Emperor Constantine enforced the Trinity doctrine ruthlessly as was explained by Archdeacon of Westminster Frederick Farrar, Chaplain to the Queen Victoria. He wrote:
Constantine heartily accepted the [Athanasian] Creed. He presumably retained the opinion which he had so forcibly expressed, that the dispute was verbal and superfluous, and he would have probably preferred the creed proposed by Eusebius of Caesaria had there been and chance of its acceptance.....The one desire of the Emperor was for peace and unity, and he determined that henceforth the Arians, or Porphyrians should be put down. The books of Arius were to be burnt. No one was to read them under penalty of death. He [Arius] was banished, as were also Theonas and Secundas, the only Bishops who would not forsake his cause (p489, Lives of the Fathers Volume 1, Adam and Charles Black, 1907).
Now the above persecution is the lot of the Christian. Constantine had no idea what he was really doing. But his tactics are from the darkness, not from the light. Given that it has always been the fate of those who know the divine truth to be persecuted by governments rather than being accepted by them, it is apparent that Arius was correct. In fact the council of Nicea was a convening of the heads of the fallen church of FDS1 - see .
 If Jesus is not God then why does the King James Bible bible say:
2 And behold there came a leper and worshipped him saying: Lord if thou wilt, thou canst make me clean (Matthew 8).
Only God can be worshipped (or could be at that time), so Jesus must be God right? No, the Greek word prosekunei, can mean worship or simply pay homage to/do obeisance to. Obviously the leper was entreating Jesus, not worshipping him, his words show this. Another example of this Greek verb which the King James Bible also mistranslates as Worship but which plainly means 'paid homage to' is:
26 The servant then fell down and worshipped him saying: Lord have patience with me and I will pay thee all (Matthew 18).
Obviously the slave was not worshipping his master, as if such a master was God.
 The holy spirit led Jesus into the Wilderness to be tested by Satan:
1 Then Jesus was lead by the spirit up into the Wilderness to be tempted by Satan (Matthew 4).
The second test (which FDS2 failed) was:
6 If you are a son of God, hurl yourself down,
for it is written, He will give his angels a charge concerning you, and they
will carry you on their hands, that you may at no time strike your foot against
7 Jesus said to him: Again it is written: You must not put the Lord, thy God to the test (Matthew 4)
If Jesus was God, then the Holy Spirit has led Jesus into sin, since God must not be tested. The Holy Spirit cannot do that, so Jesus is not God.
See Top 10 Trinity Busters