When the religion of Jesus (a.
When the religion of Jesus (a.s) was lost and no matter how hard they tried they could not find it again, the last Prophet (s.a.w) was appointed, revived Islam, and delivered it to mankind in its entirety. Now eternal wisdom sees it appropriate that this religion remains until resurrection day because this was His last word and most complete leadership for mankind.
80 The Holy Prophet (s.a.w) was responsible for the propagation of Islam, proclaiming, protecting, circulating and promoting its laws and learnings and was charged with the explanation of Islamic terms and meanings, while he must also establish Islamic identity and the the Muslim society. As such, after his death God left certain persons among the nation to take over the Prophets' responsibilities.
This is the serious duty that makes up the essential output of each of the Holy Imams (a.s) and they performed this duty up until the time of Hujjat ibn al-Hassan. Their strivings, their peace, uprising, suppressions, their being poisoned and their living were all for this very cause. After their prophet this nation did as previous nations did.
They altered Islamic truths and creed, they changed it and concealed it until during the time of Muavieh; «Nothing remained of Islam but its name and of the Quran but its writing» Imam Husseins uprising and his bloody Ashura became an unpenetrable dam before alteration. From this time onward fundamental alteration did not take place. The revival of Islam, and Islam of which only the terminology remained, was begun in the time of Imam Baqir (a.s).
The continuous strivings and struggles of the Imams of this nation returned the correct meanings and concepts to the community. Once again Islamic individuals were trained, an Islamic community was founded and in short Islam in all of its dimensions returned amidst the people. 81 God willing we will study all of these subjects in our following discussion.
With regard to the Holy Prophets identity we read in the Holy Quran ("The Clans": 40) "Mohammad is not the father of any man among you, but he is the Messenger of Allah and the Seal of the Prophets...." Also regarding His book (The Bee: 89) "And We reveal the Scripture unto thee as an exposition of all things". Also (Cattle: 116) "Perfected is the Word of thy Lord in truth and Justice. There is naught that can change His words. He is the Hearer, and Knower".
And ("Fusilat": 42) "It is an unassailable Scripture. Falsehood cannot come at it from before it or behind it".