Greetings gurufabbes,
Firstly, I just remembered we had a similar question some time ago about prophets from one of your brothers in faith, so I'm posting the link here for you as you may find some of the answers given there informative:
http://www.islamicboard.com/discover...ets-islam.html
Secondly, just to point out, that ultimately, salvation is through Allah's mercy.
As you've presented through your message (the story and raison d'être of Islam) it is a "universal" message, as Christianity is.
Christianity is not universal. It did not exist before Christ (peace be upon him). Different story that current day Christianity is not what Christ (peace be on him) preached. Islam is what always was, and has always been, the true and natural religion, the only message. Submission and surrender to Allah, and obeying His commands and guidance sent to us through His messengers. It is what Noah (peace be upon him) preached, what all the prophets and messengers preached, culminating in the last messenger Muhammad (may the peace, salutations and blessings of Allah be upon him), who was sent not just for a specific people at a specific time, but for the whole world, for all time to come.
That a sceptic would wonder, well is there as a stipulation by its theologians to justify the place of Islam above the other religions,
No, this is not a stipulation originated from theologians. This is from God Himself, as He has stated/commanded many times in the Qur'an, though I have only picked very few quotes here for brevity, and through the Prophet (peace be upon him), as taught to him by God through angel Gabriel (peace be upon him),and recorded in the hadeeth.
God says in the Qur'an (translation):
"Righteousness is not that you turn your faces toward the east or the west, but [true] righteousness is [in] one who believes in Allah , the Last Day, the angels, the Book, and
the prophets and gives wealth, in spite of love for it, to relatives, orphans, the needy, the traveler, those who ask [for help], and for freeing slaves; [and who] establishes prayer and gives zakah; [those who] fulfill their promise when they promise; and [those who] are patient in poverty and hardship and during battle. Those are the ones who have been true, and it is those who are the righteous." (2:177)
"The Messenger has believed in what was revealed to him from his Lord, and [so have] the believers. All of them have believed in Allah and His angels and His books and
His messengers, [saying], "We make no distinction between any of His messengers." And they say, "We hear and we obey. [We seek] Your forgiveness, our Lord, and to You is the [final] destination."" (2:285)
"O you who have believed, believe in Allah and His Messenger and the Book that He sent down upon His Messenger and the Scripture which He sent down before. And whoever disbelieves in Allah , His angels, His books,
His messengers, and the Last Day has certainly gone far astray." (4:136)
"Say, [O believers], "We have believed in Allah and what has been revealed to us and what has been revealed to Abraham and Ishmael and Isaac and Jacob and the Descendants and what was given to Moses and Jesus and what was given to the prophets from their Lord. We make no distinction between any of them, and we are Muslims [in submission] to Him."" (2:136)
The famous hadeeth of Gabriel (peace be upon him), abbreviated for relevance:
Abu Huraira (may Allah be pleased with him) reported:
One day the Messenger of Allah (peace, blessings and salutations of Allah be on him) appeared before the public that a man came to him and said: Prophet of Allah, (tell me) what is Iman (faith). Upon this he (the Prophet) replied: That you believe in Allah, His angels, His Books, His meeting,
His Messengers and that you believe in the Resurrection hereafter. He (again) said: Messenger of Allah, (tell me) what does al-Islam signify. He (the Prophet) replied: Al-Islam signifies that you worship Allah and do not associate anything with Him and you establish obligatory prayer and you pay the obligatory poor-rate (Zakat) and you observe the fast of Ramadan. He (the inquirer) again said: Messenger of Allah, what does al-Ihsan imply? He (the Holy Prophet) replied: That you worship Allah as if you are seeing Him, and in case you fail to see Him, then observe prayer (with this idea in your mind) that (at least) He is seeing you. ....[part removed for brevity]... He (the narrator, Abu Huraira) said: Then the person turned back and went away. The Messenger of Allah (peace, blessings and salutations of Allah be on him) said: Bring that man back to me. They (the Companions of the Prophet present there) went to bring him back, but they saw nothing there. Upon this the Messenger of Allah (peace, blessings and salutations of Allah be on him) remarked: he was Gabriel, who came to teach the people their religion.
Reference : Sahih Muslim 8 e
In-book reference : Book 1, Hadith 5
USC-MSA web (English) reference : Book 1, Hadith 4
(deprecated numbering scheme)
Hence why this condition seems to me almost like a party line: get behind it or else.
Belief in all the prophets and messengers, is a part of the Islamic creed. Disbelief in one prophet, immediately takes one outside the fold of Islam. This is not a party line, or a line of Muslims only, but of all, who at their time obeyed their messengers, be that at the time of Noah, or Moses, or Jesus or Muhammad (peace be on them all). It is God's line, not ours.
The way to salvation has always been one, since Adam (peace be upon him). Islam is that message in pristine, preserved, unadulterated form. If a person obeyed the teachings from God that Noah (peace be upon him) preached at Noahs time, that person submitted to Allah (translated as Muslim). Same for any other prophet. So there will be many in heaven who will not even have heard of Prophet Muhammad (peace be upon him). Also, to point out, that ultimately, salvation is through Allah's mercy.
We believe in all the Prophets we've been told about in the Qur'an and hadeeth, and all the ones also whose names/stories we haven't been told about. All were from God, with the same essential message.
and why ultimately everyone, including the ahl-al-kitab need to convert and not stick to their old ways? Rather than having multiple ways towards salvation.
Yes the ahl al kitaab do need to become Muslims, as explained in my previous post, and we warmly, openly and urgently invite them to do so. When God sends a new messenger (there won't be one now), it becomes incumbent on those following the previous scriptures, to follow. Because the messenger is sent when the previous teachings have been corrupted/forgotten. That then is the message anew and unchanged, for people to follow. And indeed, many Christians and Jews at the time of the Prophet became Muslims when they saw that what he was teaching was the original message of their own scriptures and that he was the prophet to come foretold in them. They didn't see themselves as changing faiths, but as finding their original true faith. Since the time of Prophet Muhammad peace be on him, he is the messenger who must now be followed.
Especially when you're not of that generation that apparently "rejected" them when clearly if it had been true, you would have had more reason to believe it if the signs were there.
The Quran addresses verses directly to the Children of Israil, beginning them, "O Children of Israil". And some verses are about them, so that we do not repeat the same mistakes. In some verses, they are chastised for their killing and rejection of some of the Prophets.
"[They are] those who said, "Indeed, Allah has taken our promise not to believe any messenger until he brings us an offering which fire [from heaven] will consume." Say, "There have already come to you messengers before me with clear proofs and [even] that of which you speak. So why did you kill them, if you should be truthful?" Then if they deny you, [O Muhammad] - so were messengers denied before you, who brought clear proofs and written ordinances and the enlightening Scripture." (3:183-184)
You may not be of that generation, but you are here, here and now, and you are responsible for your own belief, and for the choices you make with regard to that. Some of your ancestors in faith were guilty of open rebellion against God and his messengers. But you don't have to be. The next natural step, is to accept Islam. The Qur'an states that it confirms the Torah, and the Injeel given to Jesus (Peace be upon him), and to believe in all the scriptures that God revealed, including the Torah and Injeel, is part of our articles of faith, even if we weren't around at the time those books were in their unadulterated original forms. Moses (peace be upon him) is the most mentioned Prophet in the Qur'an. You will feel like you have come home.
Peace.