How were the parsons of Egypt able to build huge monuments and temples that took decades to complete?

The parsons of Egypt, who were often priests and administrators, oversaw large labor forces composed of skilled workers, laborers, and artisans. They organized these groups efficiently, utilizing a system of labor that included seasonal workers during the Nile's flooding when agricultural work was minimal. Furthermore, the resources for these monumental projects were sourced through a centralized economy, allowing for the mobilization of materials and manpower over extended periods. Additionally, the religious and cultural significance of these monuments motivated the community to contribute to their construction.