The Trinity of Father, Son, and Holy Spirit
Trinity is not a Bible word, and perhaps that is a reason that youthful
Muslim apologists like to make an attack on the word and concept.  
Of course one of their major doctrines is "Allah is the One Almighty
God."  By the way neither does the Bible mention Allah, having a
preference for LORD God, Jehovah God, nor the Bible mention  
prophet Mohammed; however their apologists like to claim that
Moses wrote of him in the Deutoronomy passage of 18:18, and the
Apostle Peter explained in Acts 3:17-26 that Prophet Messiah was
Jesus of Nazareth whom they had killed and Who arose on the "third
day".  (Third days is found often in the OT and especially in the NT,
Jesus mentioning it frequenly to prepare His disciples, but also
mentioned His resurrection for assurance.)

God first named Himself to humanity with a voice out of a burning
bush to Moses, saying "I am that I am."
And similarly the Trinity is not so much a doctrine as it just IS.  Jesus
nor the Apostles never taught it directly, they just mentioned "God
the Father, God the Son, and God the Holy Spirit so often, like in the
great commission as a rational postulate consistent with total reality
and total New Testament.

I.  What the Muslim apologists say about the Trinity.

{Credit is given to an energetic and youthful northern Pakistan
apologist student named
Aisha Khan.  You can see her Profile in
Google+.  Please don't forget that Satan, who is a liar and the father
of the lie is speaking through them as Jesus told Peter "Satan, get
thee behind Me", as like the Muslims they "savourest the things that
be of man not of God".  Also without any creativity of thought, they
copy and past in their Google+ comments canned statements from
IRF, Dr Zaid, or some other of their religious authorities }

Muslims canned modes of attack on the Bible are of course on Jesus
as the "only begotten Son of God" as they strive to put Mohammed
on a equal footing with Jesus; on the divinity of Christ; on the
Trinity; and of course the Koran as Word of God of newest special
revelations, 700 years later, to the Christian Bible.

Muslims attack on the Bible and The Trinity:

1.  June 10, 2015.

"I want to give you few reference from the Bible which denies the
concept of Trinity. I already mentioned for you in the earlier
comment Gospel of Mark Chapter 12 verse 29 " Hear o Israel, the
lord our God is one God.
Moreover, Almighty God says, its mentioned in the Book of Isaiah
Cptr: 43 verse 11 " I even I, am the Lord, beside me there is no
savior. Isaiah Chapter 45 verse 5 " I am Lord, and there is non else,
there is no God beside me". Isaiah Chapter 46 verse 9 " I am God,
and there is none else, I am God, and there is none like me."
Book of Exodus Chp: 20 verse 3 to 5 " Thou shalt not bow down
thyself to them, nor serve them for I the Lord thy God am a jealous
God."
Book of Deuteronomy " Thou shalt have none other God before me."
Thou shalt not make thee any graven image, or any likness of
anything that is in heaven above, or that in the earth beneath, or
that is in the water beneath the earth ."
Deuteronomy Ch: 5 verse 7-9
" Thou shalt not bow down thyself unto them, for I the Lord thy God
am a jealous God."
So it proves that God never tolerate that there will be partners with
him in divinity."

2.  June 9, 2015.

"
Regarding Trinity, so The closest verse that can find in the Bible,
which can be taken for " Trinity" is the first Epistle of John Chapter 5
verse 7 which says, " For there are three which bears record in
heaven, the father, the word and the holy ghost and these three are
one". This verse of the Bible is closest resemblance to Trinity in the
complete Bible. But if you read the revised standard version which
has been revised by (32) Scholars of the highest eminence, backed
by 50 different christians cooperating denominations, they have
removed this verse from the Bible as an interpolation, as a
concoction, as a fabrication. It was not by Muslims or non-Christians
scholars but by Christian Scholars which you claimed that they give
the name of Trinity. We Muslims are thankful to the DDs (Doctors of
Divinity) for getting the Bible one step closer to the Quran. Jesus
(PBUH) never spoke about Trinity. he said, its mentioned in the
Gospel of Mark Chapter 12 verse 29 " Hear o Israel, the lord our
God is one God. But if you ask the Christian church they will tell you
the father is person, the son is a person and the holy ghost is a
person but they aren't three persons they are one person. Person,
person, person, but not three persons one person? what language is
this ? 1+1+1 = 3 not 1. So when we ask them that suppose, there
are three triplets, identical triplets, if one of them commits murder,
can you hang the other and the answer is no, because each one has
a different personality. So how can be three in one? The Trinity is a
concept which is illogical how much you try you will never be able to
prove it, Suppose if you say that Jesus (PBUH) died on the cross. Do
you mean that even God died on the cross? Naozobillah ."

II.  The online Christian answer about Trinity to these Muslim
comments by knowledge Bible by
Raja Raja  {you can also see his
Google+ Profile.}

"Dear Aisha Khan....i am not sure why you are so interested in the
topic of Trinity but i hope the following will be of some help to you.
Have a wonderful weekend.

Is the Doctrine of the Trinity in the Bible?
Some people who reject the Trinity doctrine often claim that the
word “Trinity” is not found in Scripture. Of course, there is no verse
that says “God is three Persons” or “God is a Trinity.” This is all
evident and true, but it proves nothing. There are many words and
phrases that Christians use, which are not found in the Bible. For
example, the word “Bible” is not found in the Bible.

More to the point, opponents of the Trinity doctrine claim that a
Trinitarian view of God’s nature and being can’t be proven from the
Bible. Since the books of the Bible are not written as theological
tracts, this may seem on the surface to be true. There is no
statement in Scripture that says, “God is three Persons in one being,
and here is the proof. . .”

However, the New Testament does bring God (Father), the Son
(Jesus Christ) and the Holy Spirit together in such a way as to
strongly imply the Trinitarian nature of God. Three Scriptures are
quoted below as a summary of the various other biblical passages
that bring together the three Persons of the Godhead. One Scripture
is from the Gospels, another is from the apostle Paul and a third is
from the apostle Peter. The words in each passage referring to each
of the three Persons are italicized to emphasize their Trinitarian
implication:

All authority in heaven and on earth has been given to me.
Therefore go and make disciples of all nations, baptizing them in the
name [singular] of the Father and of the Son and of the Holy Spirit
[Matthew 28:19].
May the grace of the Lord Jesus Christ, and the love of God, and the
fellowship of the Holy Spirit be with you all [2 Corinthians 13:14].
To God’s elect...who have been chosen according to the
foreknowledge of God the Father, through the sanctifying work of
the Spirit, for obedience to Jesus Christ and sprinkling by his blood
[1 Peter 1:1-2].
Here are three passages in Scripture, one on the lips of Jesus, and
the other two from leading apostles, each bringing together the
three Persons of the Godhead in an unmistakable way. But these are
only a sampling of other similar passages. Among others are the
following: Romans 14:17-18; 15:16;1 Corinthians 2:2-5; 6:11; 12:4-
6; 2 Corinthians 1:21-22; Galatians 4:6; Ephesians 2:18-22; 3:14-
19; Ephesians 4:4-6; Colossians 1:6-8; 1Thessalonians 1:3-5; 2
Thessalonians 2:13-14; Titus 3:4-6. The reader is encouraged to
read each of these passages and note how God (Father), Son (Jesus
Christ) and the Holy Spirit are brought together as instruments of
our salvation.

Such passages show that the New Testament faith is implicitly
Trinitarian. It’s true that none of these passages say directly that
“God is a Trinity. . .” or “This is the Trinitarian doctrine. . .” But they
don’t need to. As mentioned above, the books of the New Testament
are not formal, point-by-point treatises of doctrine. Nonetheless,
these and other Scriptures speak easily and without any self-
consciousness of God (Father), Son (Jesus) and Holy Spirit working
together as one. The writers show no feeling of strangeness in
joining these divine Persons together as a unity in their salvific work.
Systematic theologian Alister E. McGrath makes this point in his
book Christian Theology:

The foundations of the doctrine of the Trinity are to be found in the
pervasive pattern of divine activity to which the New Testament
bears witness…. There is the closest of connections between the
Father, Son, and Spirit in the New Testament writings. Time after
time, New Testament passages link together these three elements
as part of a greater whole. The totality of God’s saving presence and
power can only, it would seem, be expressed by involving all three
elements.

Such New Testament Scriptures answer the charge that the Trinity
doctrine was only developed well into the church age and that it
reflects “pagan” ideas, and not biblical ones. If we look at Scripture
with an open mind regarding what it says about the being we call
God, it’s clear that he is shown to be Triune in nature. The Bible
reveals that the Father is God, Jesus the Son is God, and the Holy
Spirit is God, and yet the Bible also insists that this is only one God.
These biblical teachings led the early church to formulate the
doctrine of the Trinity.

We can confidently say that the Trinity, as a truth regarding God’s
essential being, has always been a reality. Perhaps it was not
completely clear in antiquity, including even in the Old Testament.
But the Incarnation of the Son of God and the coming of the Holy
Spirit revealed that God was Triune. This revelation was made in
concrete fact, in that the Son and the Holy Spirit broke into our
world at definite points in history. The fact of the Triune revelation of
God in historical time was only later described in the word of God we
call the New Testament.

III. The
Bible 2012 answer on "God the Father is the originating
Cause, God the Son is the mediating Cause, and God the Holy Spirit
is the effecting Cause."
12:13 PM

+Raja Raja Welcome aboard Raja, Raja, it is good to see some
Chritian Bible believers hoping in, especially one as yourself that
provides thorough and scholastic research on Bible Scripture.
Might something be added as some Muslims like to call Christians
brothers, that the thousands of Christian brother testimonies such as
yours, or just one, that we experience the natural cry of "Abba
Father" for God the Father, the Comforter ways of the Holy Spirit,
and the constant knocking at the doors of our heart of Jesus; and as
much as support per the Bible as the Trinity as a reality, we
experience God of the Father, God the Son, and God the Holy Spirit;
and this is the powerful potential of personal experience.
 You admit and we admit that we fully can not comprehend the
Trinity any more than we can comprehend Almighty, for as He
writes in His book, "Even as the heavens are higher than the earth,
His ways are higher than our ways, and His thoughts are higher than
our thoughts'.  However some Bible scholar helped to summarize
the Bible in this explanation, also a personal testimony, "God the
Father is the originating Cause, God the Son is the Mediating Cause,
and God the Spirit is the Effecting Cause'.  You read this in the Bible
in Creation:  "In the beginning God {the Father} created the
heavens and the earth"  (Genesis);  of Jesus the Word, "All things
were made by Him and without Him was nothing made that was
made"; of the Spirit in Creation back to Genesis, "the Spirit brooded
on the face of the deep" to Create something out of almost nothing.
Much Bible is also summarized in the Trinity in salvation:  "God
thought is, Jesus bought it, and the Holy Spirit wrought it."
And back to the personal aspect of the Trinity in Christian
experience, this process works backwards in prayer, and prayer
warriors for God and Christ recognize it:  effective prayer starts with
inspirations of the Spirit to speak to God in the proper language; any
heard by God prayer has to be through Jesus the one and only
Mediator between God and man, Jesus Who stands at the right hand
of God, and "ever liveth to make intercessions for our sins."

This is a lot to digest at one time, especially if you are to
search all the listed scriptures to make sure it is so,
therefore you are offered a free PDF download,
Trinity, to
read at your convenience.