Unitarian Arianism produced unitarian Islam. According to Dr. Luther,1 who before becoming a Protestant had previously been an Augustinian monk, the A.D. 400f "Augustine held that [the A.D. 320f] Arius's punishment in hell becomes greater every day, as long as this error lasts. For Mohammed came out of this sect."
Arius , who died in A.D. 336, was a unitarian heretic who rejected the Trinity. Later, also the heretic Mohammed rejected Christianity for his own kind of Unitarianism — around A.D. 610. Indeed, shortly thereafter — he increasingly began to suppress and finally to persecute Trinitarians who resisted Islam.
From precisely Mohammad’s same time onward, the Bishop of Rome appropriated the novel title of ‘Sole Pope.’ In the Middle Ages, the Pope more and more persecuted all who would not bow under his sway. Then the Papacy reached its climax during the reign of Pope Innocent III, who died in A.D. 1216.
That misnamed ‘Innocent’ proclaimed the doctrine of transubstantiation an essential teaching, and also claimed sovereignty over England (unintentionally triggering off Magna Carta as a reaction). Even after that, Rome still continued to rule over Western Europe with an iron fist.
At that same time, in the Near East, only the Syrian coast from Tyre to Joppa had not yet fallen to Islam. By 1453, the Muslims had triumphed at the Fall of Constantinople — and started subduing Greece. Thereafter, the Turks next subjugated Bulgaria and invaded the Ukraine.
In 1465, the Muslims conquered Herzegovina, and in 1475 they captured the Crimea. That was exactly eight years before the birth of the great Protestant Reformer, Martin Luther, in 1483, at Eisleben in Eastern Germany — toward which the Muslims were (then as now) steadily advancing.
Thereafter, the Turks further subjugated Albania (1500), Moldavia (1512), Romania (1516), and Montenegro (1517). Luther was thirty-four, when the Protestant Reformation began in 1517. Yet soon, even Belgrade, the capital of Serbia, fell in 1521 — and Bosnia in 1527.
The Muslims then swiftly advanced throughout Hungary toward Austria, Poland, Russia, and even Lithuania. Indeed, after their victory at the Battle of Mohacs in 1526, the Muslims soon reached Vienna and besieged it in 1529. By 1541, the Turks had consolidated their hold over Hungary. Indeed, by the time Luther died in1546, the whole of Moldavia had been dominated by the Turks.
The pioneer Protestant Reformer Rev. Prof. Dr. Martin Luther (1483-1546) thus lived at a time when the Papacy had corrupted the whole of the Western Church. At the same time, Islam was swallowing up much of what was left of the Eastern Church.
After Luther learned to trust in Christ alone for his salvation in 1517f, he increasingly saw both Islam and the Papacy as the two huge apostasies which the Holy Scriptures predicted would long obscure True Christianity — until both would ultimately be quashed and vanquished.
Luther on Pagan Rome and the Papacy and the Holy Roman Empire in Daniel chapter two
In the Biblical Book of Daniel, Luther saw both Islam and the Papacy predicted. In his 1530 Preface to the Book of Daniel, on the subject of the four successive segments in the image of a man seen by King Nebuchadnezzar in his dream, Luther first of all makes the following remarks.2
"The first kingdom [viz. the head of the image] is that of the Assyrians or Babylonians; the second [viz. the shoulders], that of the Medes and Persians; the third [viz. the waist], that of Alexander the Great and the Greeks; the fourth [viz. the legs of the image], that of the Romans. Everyone agrees on this view and interpretation. Subsequent events and the histories, prove it conclusively…. “Daniel has most to say about the Roman Empire,” explains Luther. “At the end [2:41-45], where the iron legs begin to divide into the toes of the feet, Daniel points out three things about the Roman Empire.