Why were kings so powerful in ancient times?

Kings in ancient times were powerful due to their control over land, resources, and military forces, which allowed them to maintain authority and protect their territories. They often claimed divine right or religious legitimacy, which reinforced their status and justified their rule. Additionally, centralized governance and the ability to levy taxes and mobilize labor for large projects, such as temples and fortifications, further solidified their power. Social hierarchies and loyalty from nobles and subjects also played crucial roles in sustaining their authority.