If Muhammad had plagiarized from that silly book, he would have repeated the stupidity that Jesus was God's son. Right? But he did not. So, wtf was plagiarized from that absurd book?
Muhammed says the Quran reconfirms the message of the Gospel:
Sura 3:3 "He [Allah] has verily revealed to you this Book [the Qur'an] in truth and confirmation of the Books revealed before, as indeed He had revealed the Torah and the Gospel." This is reconfirmed: Qur'an 5:46 "Later, in the train of the prophets, We [Allah] sent Jesus, son of Mary, confirming the Torah which had been sent down before him, and gave him the Gospel containing guidance and light, which corroborated the earlier Torah."
Sura 5:47-48"Let the people of the Gospel [Christians] judge by what has been revealed in it by Allah." And... "To you We have revealed the Qur'an containing the truth, confirming the earlier revelations [Torah, Psalms, and Gospels], and preserving them from change and corruption. So judge between them by what has been revealed by Allah."
And the message of the Gospels say Jesus is the son of God, therefore Muhammed indirectly declares Jesus is son of God.
According to the Quran Jesus had the ability to create life:
Sura 3:49 and he shall be a prophet to the people of Israel (saying), that I have come to you, with a sign from God, namely, that I will CREATE for you out of clay (annee AKHLUQU lakum mina ALTTEENI) as though it were the form of a bird, and I will blow thereon and it shall become a bird by God's permission; and I will heal the blind from birth, and lepers; and I will bring the dead to life by God's permission; and I will tell you what you eat and what ye store up in your houses. Verily, in that is a sign for you if ye be believers.
Sura 5:110 When God shall say, O Jesus son of Mary, remember my favour towards thee, and towards thy mother; when I strengthened thee with the holy spirit, that thou shouldest speak unto men in the cradle, and when thou wast grown up; and when I taught thee the scripture, and wisdom, and the law, and the gospel; and when thou didst CREATE of clay (wa-ith TAKHLUQU mina ALTTEENI) as it were the figure of a bird, by my permission, and didst breathe thereon, and it became a bird by my permission; and thou didst heal one blind from his birth, and the leper, by my permission; and when thou didst bring forth the dead [from their graves], by my permission; and when I with-held the children of Israel from [killing] thee, when thou hadst come unto them with evident [miracles], and such of them as believed not, said, this is nothing but manifest sorcery.
Sura 38:71-72 Behold, thy Lord said to the angels: "I am about to create man from clay (innee KHALIQUN basharan min TEENIN): When I have fashioned him (in due proportion) and breathed into him of My spirit, fall ye down in obeisance unto him."
According to Islam only Allah has the ability to create and breath life into something, but in the Quran there are suras stating Jesus can create and breath life into something. How can a mere prophet create and breath life into something? Therefore Muhammed is indirectly saying Jesus is the son of God.
Besides most the stories of Jesus mentioned in the Quran were well known by different Christian sects, so how can these verses not be plagiarized by Muhammed when they were already well known amongst the Christians ( and they probably told these stories to Muhammed )?