'Fortified' in the Bible

Where can we go? Our brothers discouraged us when they said that the people are bigger and taller than we are. Their cities are tall and fortified to the sky, and we also saw the Anakim there.'

All of these cities were fortified with high walls, gates, and bars. Furthermore, there were very many unwalled regions.

"Listen, Israel! Today you are about to cross the Jordan to enter and dispossess greater and mightier nations than you, who live in large cities that are fortified to the sky.

They'll besiege all your cities until your high and fortified walls in which you have trusted collapse throughout the land. Indeed, they will besiege all your cities, which the LORD your God gave you."