Is the old testament of Jews and Christians and also Quran exactly same or there are some difference?
Really different between Christian version of Bible vs. Original Hebrew. See Codex Sinaiticus–5th cent. Christian Bible, over 30,000 variants and its shows 3 copyists adding & subtracting verses & books. Qur’an is really different. They had a Gnostic & Coptic version of the Hebrew. Ali-ilah; the god; the supreme; the all-powerful; all-knowing; and totally unknowable; the predeterminer of everyone’s life destiny; chief of the 360 gods; the special deity of the Quraish; having three daughters: Al Uzzah (Venus), Manah (Destiny), and Alat; having the idol temple at Mecca under his name; the mate of Alat, the goddess of fate where they devotedly sacrificed animals. Muhammad chose Ali-ilah to be not the God Most High as was believed, but morphed the whole concept of the HaShem of Musa’s Laws, into الله Allāh), which was most appealing to the pagans he wished to win over. Even at first, he was not only rejected by his family, but kicked out. He also distorted the concept of the Noahite Coven