Here is an interesting quote by Homer "Suppose we've chosen the wrong god. Every time we go to church we're just making him madder and madder"
Keeping that in mind; why do you say Islam is the only true religion?
what is the criteria, we have to consider to weigh a religion in order for us to come to the conclusion that it is indeed the only true religion?
Assalamualykum
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But we can logically satisfy ourselves.
Earlier different parts of the world was occupied by people having different culture, language, and civilization
Allah (swt) had sent messengers to these tribes, nations and these messengers were from amongst their own people and this religion or message was limited to these region or people and the rules or commandments were according to the situation prevailing at that time
During earlier time man had not progressed much and was lacking in scientific and technical knowledge, lack of long distance communication, lack of preservation of information, difficulty in transportation
Hence it was logical to send different prophets to different tribes and nations
If we take example of Jesus (pbuh)” Then he said to the woman, "I was sent only to help the people of Israel--God's lost sheep--not the Gentiles." - Matthew 15:24”
Now during this early time if a messenger wanted to spread his message to all over the world it would have been impossible, the message would have got corrupted because of lack of preserving and verifying the message this is what has happened with the bible and other religion there is no original preserved text or message to verify.
This is not so with the holy Quran.
For all the other true religions it was the responsibility of the people to preserve the message of god
But for the preservation of the holy Quran Allah [swt] himself has taken the responsibility
Verily We: It is We Who have sent down the Dhikr (i.e. the Quran) and surely, We will guard it (from corruption).
Al-Hijr 9
Translation-M. Khan
The preservation of holy Quran is not through written form but by rote or through heart (technically brain)
And We have indeed made the Quran easy to understand and remember, then is there any that will remember (or receive admonition)?
(Chapter #54, Verse #17)
It is not difficult to find children as young as 7 or 8 years old who have memorized the whole Quran
There are millions of people who have memorized the whole Quran.
During month of Ramadan tarawih prayers are held during night in which whole Quran is recited over the one month period
Also Arabic language is still spoken
When Quran is recited in Arabic it has a rhythm and if a word or phrase is missed the rhythm is broken and hence it comes to notice that something is missing or changed.
Thus Quran can be checked if there is mistake in text form whether intentional or otherwise.
Since millions of people have memorized the holy Quran it can be verified by multiple sources, also holy prophet made sure that his companion memorized the Quran.
Allah (swt) has used human brain to protect the holy Quran from corruption
As we all are aware what a marvelous peace of genius creation is brain by Allah (swt)
Allah-o-akbar!
Alhumdulliah!
If you look at the timeline of world progress during dark ages for Europe it was golden period for Muslims
Ibn al-Haytham first described
pinhole camera
The modern cheque comes from the Arabic saqq, a Muslim businessman could cash a cheque in China drawn on his bank in Baghdad.
Abbas Ibn Firnas invented an
artificial weather simulation room,
Plaster by
Abu al-Qasim (Abucasis) in
1000
the first
smallpox vaccine
Injection syringe by the
Iraqi surgeon
Over 200
surgical instruments
Just Google Muslim inventions or 1001 inventions and be surprised!
If you notice from this period onwards the world started to shrink meaning people began to know a lot more about the earth and its habitants boundaries were expanded nations were captured
There were expeditions and people began to explore different parts of the world
Human knowledge was on the rise.
It began to become easier to spread the message of Islam to different parts of the world
And during last few centuries the progress has been indeed very rapid
As preservation of the message was no problem it remained uncorrupted
The progress of man has not been linear but rather exponential
And Islam had arrived just when the progress was about to take off
Hence Islam is relative young religion.
During present time it even easier to spread the message of Islam
Taking example of myself I can communicate with people practical any where in the world
Also the whole Quran and hadiths are available for people to analyze, scrutinize, verify.
Allah (swt) has also made his commandments and rules that one must follow in Islam universal; Islam does not require one to forgo his culture as long as it does not conflict with teaching of Islam
So it is logical there is no need for any new religion or prophet because all the message and information is available in any part of the world.
And Allah (swt) says
And We have sent you (O Muhammad SAW) not but as a mercy for the Alameen (mankind, jinns and all that exists)
.Chapter #21, Verse #107
“this day have i perfected your religion for you, completed My favour upon you, and have chosen for you islam as your religion..”
Chapter #5, Verse #3
Now for the question
How do we know which religion is true?
For that first you must reflect at the magnitude of his creation
How big is the Universe?
youtube.com/watch?v=Zr7wNQw12l8&feature=related
.
.
If you want to rebuild twin towers again the person to do that must have some credential and qualities he must tell what he is capable of doing and showcase some of his creation
Now to conclude which god is true god you must know what the religion say about their god.
What are his qualities?
What power he posses?
What he is capable of doing?
Collect this information from as many as religion you can get hold of.
For example
In Islam god has 99 names or attributes (one hidden) which describe him
Here are few of them
Read them very carefully
As-Salaam
The Source of Peace, The One who is free from every imperfection.
Al-Quddoos
The Holy, The One who is pure from any imperfection and clear from children and adversaries.
Al-Mutakabbir
The Majestic, The One who is clear from the attributes of the creatures and from resembling them.
Al-Khaaliq
The Creator, The One who brings everything from non-existence to existence.
Al-Musawwir
The Fashioner, The One who forms His creatures in different pictures.
Al-Ghaffaar
The Great Forgiver, The Forgiver, The One who forgives the sins of His slaves time and time again.
As-Samee^
The All-Hearing, The Hearer, The One who Hears all things that are heard by His Eternal Hearing without an ear, instrument or organ.
Al-Baseer
The All-Seeing, The One who Sees all things that are seen by His Eternal Seeing without a pupil or any other instrument.
Al-Haleem
The Forebearing, The Clement, The One who delays the punishment for those who deserve it and then He might forgive them.
Al-Kabeer
The Most Great, The Great, The One who is greater than everything in status.
Al-Haqq
The Truth, The True, The One who truly exists.
Al-Mateen
The Firm One, The One with extreme Power which is un-interrupted and He does not get tired
.
Al-Mumeet
The Creator of Death, The Destroyer, The One who renders the living dead.
Al-Qayyoom
The Self-Subsisting, The One who remains and does not end.
Al-'Awwal
The First, The One whose Existence is without a beginning.
Al-'Akhir
The Last, The One whose Existence is without an end.
Az-Zaahir
The Manifest, The One that nothing is above Him and nothing is underneath Him, hence He exists without a place. He, The Exalted, His Existence is obvious by proofs and He is clear from the delusions of attributes of bodies.
Al-Ghaniyy
The Self-Sufficient, The One who does not need the creation.
Al-Badi^
The Incomparable, The One who created the creation and formed it without any preceding example.
Al-Baaqi
The Everlasting, The One that the state of non-existence is impossible for Him.
As-Saboor
The Patient, The One who does not quickly punish the sinners.
From Christianity
The father ( ask the Christians )
The ghost ( ask the Christians )
The son ( ask the Christians )
Now compare these
And if you are logical, unbiased, looking for truth then I’m sure you will find that the only entity that is capable of creating all this is Allah (swt)
Sorry for the long post, hope I have not bored you.
All the true things I said is from Allah (swt) and any unintentional mistake I may have made is from me, May Allah (swt) forgive me
Allah (swt) alone knows best
.