Nephilim giants once walked the Earth
Those “giants” were Nephilim — fallen angels — their existence supported by many other Bible passages. Some say Goliath was one of their descendants.
The ancient Jewish historian Josephus wrote that when the Israelites moved their camp to Hebron, they encountered “the race of giants, who had bodies so large, and countenances so entirely different from other men, that they were surprising to the sight, and terrible to the hearing.”