Throughout history, Allah has sent His messengers to many peoples. The messengers of Allah summoned mankind to the true path and communicated to them His ways. However today, it is a widespread belief that what had been revealed through various messengers to mankind were different religions. This is a misconception. The religions that Allah revealed to separate peoples in distinct periods were the same. For instance, Jesus (as) abolished some of the prohibitions brought by the preceding religion. However, there are in principle no huge differences between the religions revealed by Allah. What has been revealed to the former prophets, to Musa (Moses), to Jesus and to the last Prophet are essentially the same:

Qur'an mentions this as :
  Say, "We believe in Allah and what has been sent down to us and what was sent down to Ibrahim (Abraham), Isma’il (Ishmael) and Ishaq (Isaac) and Ya'qub (Jacob) and the Tribes, and what Musa (Moses) and ‘Isa (Jesus) and all the Prophets were given by their Lord. We do not differentiate between any of them..." (Surah Al ‘Imran: 84-85)

He taught that love and mercy overcome hate and anger and that only a true and sincere faith in the Creator and obedience to His will can bring a person salvation in this life as well as in the next. To reinforce his message, which was called Gospel or “Injeel” (Good News), God granted him the performance of miracles. He healed the sick, uplifted the distressed and revived the dead. All these things he did with the permission of God, never taking credit for them himself. He led a simple and pious life. Soon he attracted an inner-circle of devoted followers who listened to his teachings with fervor and humility. These disciples, among them Peter, Barnabas, and John helped him carry the message of Divine Love to the people. They helped him in his mission.

References :
Articles by Yahiya Emerick
& www.harunyahya.com