(1643-1727) is seen as one of the greatest scientist of all time. He's known for laying much of the groundwork for modern physics, astronomy, math and optics. Yet he wrote much more on religion than science. What was his personal belief system? Well, he clearly read the Bible in a literal manner and rejected the Trinity (the doctrine is false because there's no Scriptural evidence for it, also it's containing many Greek Pantheistic or Platonic elements). Not only did he reject the Trinity; he regarded Trinitarianism as a sin of idolatry. Newton lived in a time of religious intolerance and persecutions (inflicted upon many who refuted Catholicism's teachings). He knew that his death would be a certainty if any of his true beliefs were made known.
Isaac Newton wrote a number of religious tracts (from 1690's onward) dealing with the literal interpretation of the Bible. A manuscript he sent toin which he disputed the existence of the Trinity was never published. His later works, "The Chronology of Kingdoms Amended" (1728) and "Observations Upon the Prophecies of Daniel and the Apocalypse of St. John" (1733) were published after his death.
In a manuscript he wrote in 1704 in which he describes his attempts to extract scientific information from the Bible, Newton estimated that the world would end no earlier than 2060 (though initially he believed the date to be 2034). In predicting this he said, "This I mention not to assert when the time of the end shall be, but to put a stop to the rash conjectures of fanciful men who are frequently predicting the time of the end, and by doing so bring the sacred prophesies into discredit as often as their predictions fail." He felt that God had given unto him a special gift or insight into both scientific understanding and Biblical prophecies. He wrote, "A few scattered persons which God as chosen...can set themselves sincerely and honestly to search after truth." Newton said, "The authority of prophecy is Divine." Meaning that God has foreseen the future and revealed it to mankind. Newton interpreted biblical prophecies to mean that the Jews would return to the Holy Land before the world ends. The end of days will see "the ruin of the wicked nations, the end of weeping and of all troubles, the return of the Jews captivity and their setting up a flourishing and everlasting Kingdom," he posited.
To understand the reasoning behind the 2060 prediction, an understanding of Newton's theological beliefs should be taken into account, particularly his nontrinitarian beliefs and those negative views he held about the Papacy. Both of these lay essential to his calculations, which are themselves based upon specific chronological dates which he believed had already transpired and had been prophesied within Revelation and Daniel, books within the Christian Bible.
Despite the dramatic nature of a prediction of the end of the world, Newton may not have been referring to the 2060 date as a destructive act resulting in the annihilation of the earth and its inhabitants, but rather one in which he believed the world was to be replaced with a new one based upon a transition to an era of divinely inspired peace. In Christian and Islamic theology, this concept is often referred to as The Second Coming of Jesus Christ and the establishment of Paradise by The Kingdom of God on Earth. In Judaism it is often referred to as the Messianic era or the "Yamei Moshiach" (Days of the Messiah).
Newton was convinced that in the last days that people would have a greater knowledge and understanding, that of both God and His word. He considered the identification of the Antichrist to be one not of "Idle speculation... but the duty of the greatest moment." Sir Issac Newton desired to see an union between science and Christianity, seeing no conflict between them. Was Newton right and will 2060 be the final year for all of mankind? Nobody but God Himself knows that for certain. We are only promised the here and now. To that end we should wisely use whatever time that remains for us towards the coming of the kingdom of God.