Best beach vacation spots for Josephus, the Jewish historian, made it clear that he believed that a cometary sword standing over Jerusalem in AD ? was a powerful omen auguring the destruction of the city in AD Although comets were often perceived to be negative omens in the ancient world, on many occasions they were interpreted positively, as we shall see in the following chapter. Comets in the Bible? In the Biblical tradition, comets seem to be regarded as capable of functioning as messengers from God. Genesis appears to have comets chiely in mind when it refers to lights that are for signs God said, Let there be lights in the expanse of the heavens to separate the day from the night. And let them be for signs and for seasons, and for days and years, and let them be lights in the expanse of the heavens to give light upon the earth. And it was so. No member of the starry host is more equipped to communicate meaning for signs than the comet. As comets move across the sky through the constellations, they are susceptible to being interpreted as conveying all kinds of messages, even complex ones, to human observers. Best beach vacation spots 2016.