Reputed last words of Gilgamesh VI shortly before his assassination in Babylon during the Last Era of Kings. His assassination is considered to be the beginning of the High Chaos of the Bronze Age and Babylon's final collapse as a regional power.
There is but one God and his name is Aten.
Among the last words of Tutankhamun during a troubled period of Egypt regarding the conflict between Atenism and that of Amun-Ra and the polytheistic methods of the old faiths. However, his death would coincide with a period of troubles and plagues, causing many to doubt the old ways and that by rejecting Atenism, they have brought upon his wrath. This led to the official rebirth of Atenism throughout the Empire and maintaining the story of the "first individual", Akhenaten while the nobility and priests tried erasing him from history.
They would ultimately fail when Egypt would fall under the influence of the Roman Empire, with the Romans becoming enamored with the story of Akhenaten and Atenism. This would lead to a syncretism of Atenism and that of Rome's sun god, Sol, the two merging to become Aten-Sol Invictus, a proclamation of the triumph of Atenism. The religion would spread throughout, chasing traditional polytheists down into Nubia. Christianity meanwhile would instead be pushed further into Judea and Arabia though spread into Ethiopia while syretism as Jesus Christ being the heir of Ahura Mazda spreading into Iran and out east.
"My Emperor, Persia has fallen to the Muslims. Why seek more warfare? Our focus should be retaining and stengthening our hold in Egypt, Cyrenaica and Mauretania in the name of Christ. Grant these followers of Muhammad the chance to deal with the barbarians north of the River Danubius and across the Sea of Pontus so we may have an accord."