Unitarians (like the Watchtower Society) and modalists (like Oneness Pentecostals) often directly affirm
that Trinitarianism is derived from paganism.  They commonly quote various publications as well to support
such affirmations.  For example,
the Watchtower society (so-called “Jehovah’s Witnesses”), representative of modern Bible-affirming Arianism,
states, “‘New Testament research has been leading an increasing number of
scholars to the conclusion that Jesus certainly never believed himself to be
God.’—Bulletin of the John Rylands Library.”[1]
In fact, as “Yale University professor E. Washburn Hopkins affirmed: ‘To Jesus
and Paul the doctrine of the trinity was apparently unknown; . . . they say
nothing about it.’—Origin and Evolution of Religion.”[2]  Why?  “The Encyclopedia of Religion admits: ‘Theologians today are in agreement that the
Hebrew Bible does not contain a doctrine of the Trinity.’ . . . The
Encyclopedia of Religion says: ‘Theologians
agree that the New Testament also does not contain an explicit doctrine of the
Trinity.’”[3]  If, as Arians affirm, Trinitarianism
does not come from the Bible, where does it come from?  The Watchtower references the book “The
Paganism in Our Christianity [which]
declares: ‘The origin of the [Trinity] is entirely pagan.’”[4]  In fact, these Unitarians affirm in “the
book A Statement of Reasons,
Andrews Norton says of the Trinity: ‘We can trace the history of this doctrine,
and discover its source, not in the Christian revelation, but in the Platonic
philosophy . . . The Trinity is not a doctrine of Christ and his Apostles, but
a fiction of the school of the later Platonists.’”[5]  Similarly, the modalist leader David
Bernard writes, “[T]he idea of a trinity did not originate with Christendom. It
was a significant feature of pagan religions and philosophies before the
Christian era, and its existence today in various forms suggests an ancient,
pagan origin. . . . The Scriptures do not teach the doctrine of the trinity,
but trinitarianism has its roots in paganism.”[6]  However, the allegation that
Trinitarian doctrine comes from paganism, rather than from Scripture, is
entirely false.  This notion has
several severe problems.

First, since the word “Trinity” is not found in
pre-Christian pagan writings, this objection to the Trinity contradicts another
common anti-Trinitarian retort, namely, that Trinitarianism is unbiblical
because the word “Trinity” is not in the Bible.  If the fact that the word is not present means that the idea
is not present, then the fact that the word “Trinity” is not in pre-Christian
pagan authors means the idea is not found in paganism.  The two objections are
contradictory.  Anti-Trinitarians
should make up their minds to stick to the one or the other, but not employ
them both.  However, despite their contradictory
nature, Unitarians and modalists generally do advance both allegations.  For example, the Unitarian and modalist
compositions quoted in the previous paragraph both employ the “the word
‘Trinity’ is not in the Bible” attack.[7]  Anti-Trinitarian compositions often do
not worry about the logical consistency of their allegations, but simply employ
whatever attacks sound good at the time, even if they are contradictory.

Second, the affirmation that Trinitarianism
came from paganism is not sustainable historically.  As demonstrated in The Triune God of the Bible,[8]
Trinitarianism is taught from Genesis to Revelation.  The idea that, centuries after the inspiration of the New
Testament, paganism somehow crept in and brought forth the idea of the Trinity
is impossible in light of the clear Biblical evidence for Trinitarianism and
the testimony of post-Biblical Christianity from even the earliest period.

Furthermore, the writers quoted in
anti-Trinitarian literature to support their affirmations of the non-Biblical,
pagan origin of the Trinity are usually extremely suspect.  While, since “of making many books there
is no end” (Ecclesiastes 12:12), it is not
possible to trace and evaluate every single quotation in every anti-Trinitarian
composition, an evaluation of some of the sources employed in the Watchtower’s Should
You Believe in the Trinity? quoted above
will be evaluated as representative of much of the distortion and
misinformation advanced in the anti-Trinitarian cause.

The Arian Watchtower Society, as referenced
above, states, “‘New Testament research has been leading an increasing number
of scholars to the conclusion that Jesus certainly never believed himself to be
God.’ —Bulletin of the John Rylands Library.” The quote is prominently
displayed in the exact middle of the page, set off in bold print within a
special box.[9]  No author of the article, page number,
or other information is provided. 
The quotation was deemed important enough to be made twice in this Arian
publication, once in a special box on the side of a page highlighting its
importance.  One can with
difficulty discover the very poorly referenced source of the quotation.[10]  Upon acquiring the periodical, one
notices that the Watchtower left out, without any indication of the removal,
the underlined words in the quotation: 
“New Testament research over, say, the last thirty or forty years
has been leading an increasing number of reputable New Testament
scholars to the conclusion that Jesus himself may not have claimed any of
the Christological titles which the Gospels ascribe to him, not even the
functional designation ‘Christ,’ and certainly never believed himself to be
God.”  The author of the article,
G. H. Boobyer, is a radical Bible-rejector who denies that the Lord Jesus ever
claimed to be the Christ, and thus rejected the idea of Scripture that He was
God as well.  While Boobyer will
deny that Jesus is the Christ and that He is God, he will in his article
reference the conclusion of another writer with approval that early “Christians
might, in certain senses, have been willing to recognize the deity of the
emperor.”  Why such egregious
misrepresentation of Boobyer’s claim—leaving out his claim that Jesus never
said He was the Christ to quote only his rejection of the Scriptural testimony
to His Deity?  Is this the kind of
“scholarship” that the Arians in the Watchtower society will employ—people who
will say that Christians were willing to recognize the deity of the emperor,
but will say that Jesus never said He was the Christ, and thus not God?  And why will they rip the actual
quotation of Boobyer into pieces, and leave out the parts that radically change
his meaning?

The Watchtower also attempts to support its
anti-Trinitarianism by affirming that “Yale University professor E. Washburn
Hopkins affirmed: ‘To Jesus and Paul[11]
the doctrine of the trinity was apparently unknown; . . . they say nothing
about it.’—Origin and Evolution of Religion.
. . . [Therefore] the Christian Greek Scriptures provide . . . [no] teaching of
the Trinity.”[12]  Again, no publisher, page number, or
other information is provided for the quotation.  With considerable effort, one can discover the location of
the quotation.[13]  One begins to see why such incredibly
poor citation of the source is made when one discovers that Hopkins, in the
very sentence before the one reproduced by the Watchtower Society, states that
“The beginning of the doctrine of the trinity appears already in John,” thus
demonstrating that Hopkins recognized that Trinitarianism was found in the New
Testament, and on the same page affirmed that “The early Church taught that
Christ was the Logos and that the Logos was God,” while two pages after the
quotation made by the Watchtower Hopkins affirms that “[T]he plain faith of the
early church members . . . was just this and nothing more.  Jesus is God. So proclaimed the first
hymns, sung by the early Church.”[14]  Hopkins thus believed that early
Christianity agreed with the New Testament in teaching the Deity of Jesus
Christ. Of course, since these are exactly the opposite of the conclusion drawn
by the Watchtower from its quotation from Hopkins’ book, it is clear why there
was no great desire by this Arian organization for someone to look up the
quotation and see what was on the very same page, and in the immediate context
of the sentence from Hopkins so grossly taken out of context by the Watchtower. 

In
any case, Hopkins’ book is not filled with Scriptural exegesis refuting the
many passages in the gospels and Pauline epistles that teach
Trinitarianism—nothing remotely like this is found anywhere in his book.  Rather, Hopkins, because of his
anti-Bible evolutionary philosophy, believed that the New Testament writings of
the apostle John evolved a Trinitarianism that was not known to the Lord Jesus
(who was not, Hopkins believed, the Son of God) or Paul (whose writings,
Hopkins affirmed, were not inspired). 
Hopkins believed that “[e]very religion is a product of human evolution
and has been conditioned by a social environment.  Since man has developed from a state even lower than
savagery and was once intellectually a mere animal, it is reasonable to
attribute to him in that state no more religious consciousness than is
possessed by an animal. What then, the historian must ask, are the factors and
what the means whereby humanity has encased itself in this shell of religion,
which almost everywhere has been raied as a protective growth about the social
body? . . . [T]he principles of religion [are like the principles of human
evolution]. . . . [Man] once had a brain like that of a fish, then like that of
a reptile, and so on through the types of bird and marsupial, upward to the
brain of the higher mammals. . . . Man then was not suddenly created.”[15]  From Hopkins’ belief that all religion,
including Christianity, is a mere product of evolution, like man himself, he
describes what he believes is a progression from “the worship of stones, hills,
trees, and plants” to “the worship of animals” to “the worship of elements and
heavenly phenomena” to “the worship of the sun,” to the worship of man, of
ancestors, and eventually the alleged evolutionary development of
Christianity.  From this
evolutionary, atheistic viewpoint, Hopkins wrote:

Christianity
. . . utilized . . . much pagan material . . . [such as] baptism . . . the hope
of immortality and resurrection, miraculous cures [and] water turned into
wine[.] . . . The religions of the divine Mother and of Mithra had already
taught the doctrine of a redeeming god . . . man through the death and
resurrection of the god became . . . a partaker also in the divine nature . . .
the pagan gods were still rememberd under a new form . . . [whether of] demons
. . . [or] angels . . . to whom man still prayed. . . . It makes no difference
whether union be felt with Brahma or God, with Vishnu Krishna or with Jesus
Christ . . . the realization of union, not the special object of faith, [is]
what matters. . . . God is one with Vishnu . . . Christ and Buddha and Krishna
represent the same idea . . . [When someone is] bowing down before Buddha . . .
let us not cry out, “Ah, the wretched idolator!”