Prophecies in the New Testament:
John 14:15-"If ye love me ye will keep my commandments, v.16: And I will pray the Father and He shall give you another Parakletos (Comforter) that he may be with you for ever. v.25. These things have I spoken unto you while yet abiding with you. v.26. But the Comforter (Parakletos) which is the spirit of truth whom the Father will send in my name he shall teach you all things and bring all things to your remembrance, whatsoever I said unto you."
John 16-17: -"Nevertheless I tell you the Truuth. It is expedient for you that I go away, for if I go not away, the Comforter (Parakletos) will not come unto you, but if I go, I will send him unto you. v 8. And he, when he is come, will convict the world in respect of sin and righteousness and of Judgment. v.12. I have yet many things to say unto you, but ye can not bear them now. v.13. Howbeit when, he, the Spirit of Truth is come, he shall guide you into all the truth for he shall not speak from himself, but what so ever he shall hear, these shall he speak and he shall declare unto you the things that are to come."
Compare the words : "when he is come, will convict the world in respect of sin and righteousness and of Judgement" and analyze the Islamic laws, and you will notice that the laws of Islam are very strict and sinners are punished in a just manner befitting to their sins.
Therefore it's no wonder, after when Prophet Muhammad was first visited by Arch Angel Gibreel (Gabriel) peace be upon him, and brought him the first five verses of the Holy Qur'an and declared him as the Prophet of Allah, his Noble wife, Khadija took him to her cousin 'Waraqa Bin Noufal' who knew the Scriptures of Jews and Christians (who is stated to have translated them into Arabic). When Khadija visited him after this first revelation of God's Message (about 610 A.D) and informed him about this great incidence, Waraqa bin Noufal cried out :"Holy! Holy! This is the Namus (The Holy Spirit) who came to Moses. He will be the Prophet of his people. Tell him this and bid him be brave of heart." Some time later, when he met the Holy Prophet he again confirmed the truth declared by Torah and Gospel : "I swear by Him (Means Allah) is whose hand Waraqa's life is, Allah has chosen you to be the Prophet of this people. They will call you a liar, they will persecute you, they will banish you, they will fight against you. Oh, that I could live to those days. I would fight for these."
The first five verses of the Qur'an brought from God by the Angel Gibreel to Prophet Muhammad, are translated in English as follows : <<Read! In the Name of Your Lord, Who has created (all that exists), has created man from a clot (a piece of thick coagulated blood). Read! And your Lord is the Most Gracious, Who has taught (the writing) by the pen, has taught man that which he knew not>>