During the time when biblical accounts were documented, the notion of UFOs or extraterrestrial beings, as understood in contemporary terms, would have been completely unfamiliar to the people of that era. The way we presently compare UFOs to drones, jets, planes, helicopters, blimps, street lights, spotlights, laser beams, kites, balloons and other modern aerial objects would not have been comprehensible to the people of that time. They described unfamiliar phenomena using terms and concepts that were familiar within their level of technology and environment.

For instance, they referred to these events as "wheels of fire," "fires infolding themselves," "flying furnaces," "fiery chariots," "millstones," "clouds," "dark clouds," "fiery clouds," "swift clouds," "multicolored jewels," "rainbows," "pavilions," "pillars," "whirlwinds," "fiery arrows," and "lightnings." All of these events were perceived to occur in what was referred to as "heaven," a coded term in the King James version of the Bible that signifies the sky.

To the people of that time, such occurrences, including raising people from the dead, parting the Red Sea to crush an entire army, or abducting individuals so they would  never experiencing death, were understood as divine manifestations or supernatural events, rather than encounters with beings from other planets.