In ancient Jerusalem, Jews celebrated something called the Festival of Booths. It commemorated the 40 years that the people of Israel spent in the wilderness after their exodus from Egypt. Jerusalem was bathed in light every night during this week-long festival, because the people were to remember how God led them in the wilderness by a pillar of fire at night and a pillar of cloud by day. So every night in the temple grounds, worshippers crowded around four enormous lamp stands, which were filled with oil. Throughout the night, young men kept adding oil to the lamps, while older men sang and danced to certain psalms with as many as eight flaming torches in their hands.