The Gospels were written during the 1st century and would have been widely known especially within Isreal and Sumaria and surroundings where the Muslims had occupied.
The Qur'an quotes parts of the gospels so they must have known its contents.
There's no doubt that the Qur'an contains much of what is written in the gospels and the Torah before them. Muhammad, being a merchant, was heavily influenced by the many Christian and Jewish traders he encountered during his travels and he incorporated much of what is found in Judaism and Christianity into the Qur'an. Even more evidence that Islam borrows a lot of its teachings from the gospels can be found in the hadiths, especially those written by Shia scholars.
"Do not do to others what you do not like others to do to you, and if someone strikes you on the right cheek, turn to him your left cheek too" (Bihar al-anwar)
“You heard what was said to the people of yore, 'Do not commit adultery,' but I tell you, he who looks at a woman and desires her has committed adultery in his heart. If your right eye betrays you, then take it out and cast it away, for it is better for you that you destroy one of your organs than cast your entire body into the fire of hell. And if your right hand causes you to sin, cut it off and cast it away, for it is better for you to destroy one of your organs than that your entire body should go to hell. (Bihar al-anwar)
“I tell you, do not worry about what you will eat or what you will drink or with what you will clothe your bodies. Is not the soul more excellent than food, and the body more excellent than clothes? Look at the birds of the air, they neither sow nor reap nor store away, yet your heavenly Lord provides for them. Are you not more excellent than they'? Who among you by worrying can add a single measure to his stature'? Then why do you worry about your clothes?'' (Bihar al-anwar)
“Beware of liars who come to you in sheep's clothing while in reality they are ravenous wolves. You shall know them by their fruits. It is not possible for a good tree to bear vicious fruit, nor for a vicious tree to bear good fruit.” (Uddat al-da'i)
"Blessed is the man who purifies himself and prefers his soul to everything of this world." (Bihar al-anwar)
“Blessed is he who abandons the present desire for the absent promise.” (Bihar al-anwar)
“The love of this world and the next cannot come together in the heart of a believer, like water and fire in a single vessel.” (Bihar al-anwar)
"Verily, this world is merely a bridge, so cross over it, and do not make it your abode." (Bihar al-anwar)
“Never stare at that which is not for you. If you restrain your eyes you will never commit adultery;" (Majmu'at al-Warram)
It would be strange that the Qur'an did not refer to the Gospels as the Book of the people because at that time it was the Book of the people in that area. Why would the Qur'an not mention the Gospels which is about Jesus and only the Torah.
This could be because they were not widely available to the public in written form at the time, especially not in Arabia and among the Arab population, where there would have been no translations available in Arabic. This is just speculation on my part.
Where are these original revelations. Are these Islamic revelations revealed to Christ to teach Christians. Why would Christ teach Islam to Christians.
There are differences of opinion among Muslims as to whether or not the original revelations to the prophets exist today. Some say they were never written down; some believe written fragments of the originals still exist; and others believe they are still available but have been altered.
Islam teaches teaches that Christians had differences between what they believed and had become confused. Some had begun to believe untruths such as the sonship of Jesus and the trinity among other things. The trinity in the Qur'an is the belief in three individual gods; God, Jesus, and Mary and not: God the Father, God the Son and God the Holy Spirit as we as Christians believe. Apparently Muhammad didn't have a clear understanding of Christianity.
When Jesus came with the clarifications, he said, “I have come to you with wisdom, and to clarify for you some of what you differ about. So fear God, and obey me. God is my Lord and your Lord, so worship Him—this is a straight path.” (Qur'an 43:63-64)
So is the 'People of the Book' the Christians.
The People of the Book are followers of prophets other than Mohammed who worship the God of Abraham. This would include both Christians and Jews.
OK so it looks like the Injil (Gospel) is so called 'Mother Book' that was revealed to Jesus. So if its naming all these previous revelations to the prophets where does the actual New Testament Gospels come in. The actual ones about Jesus and the other New Testament books that are about what Jesus actually taught. How do they fit into the picture.
They don't. Muslims believe the gospels found in the New Testament are just books written by ordinary men.
According to this video from an Arab source who understand the Qur'an they seem to say that the 'Injil' is the New Testament Gospels.
The narrator's argument in that video is flawed from the start because the Bible is never mentioned in the Qur'an, and none of the Quranic verses quoted in the video refer to the Bible, the first five books of the Bible (the Torah), or the four gospels that existed at the time of Muhammad. If he has an advanced understanding of Islam, he knows this. It seems his intended audience is those who know very little, if anything, about Islam, and he is intentionally distorting what the Qur'an is saying and what Muslims believe.
As I pointed out in my previous posts, the gospel in Islam was given directly to Jesus from God while he was walking the earth and therefore can not be the gospels found in the Bible. In the same way, the Torah in Islam was directly given to Moses from God while he was alive and walking the earth.
The books of the Torah found in the Bible mention many of the revelations given to Moses but also contain a biography of Moses and talk of Moses’ death and being buried, which obviously couldn't have been written by Moses himself. Muslims believe the Quran preserves the teachings of all of the previous prophets, and the Torah and the gospel that exist today are either not the original or they have been altered, and the proof they give of this is how they are written from a third-person point of view.