When you do your research, you'll find that scientists of calculated how much fuel it would have taken it to operate it. IMPOSSIBLE.
If you go deeper you'll find that JErusalem was brighter than New York City, and it wasn't candles and torches. If you want, you can even pick up a bible and find passages that allude to it.
Hunting down all the articles, references in ancient texts of what was going on is too much work. Before Tesla, Edison, there was an entire world of advanced technology.. It wasn't all done by a camp fire.