'Fortified' in the Bible

Where can we go up? Our brothers (spies) have made our hearts melt [in fear] and demoralized us by saying, “The people are bigger and taller than we; the cities are large, and fortified [all the way up] to heaven. And besides, we saw the [giant-like] sons of the Anakim there.”’

All these cities were fortified and unassailable with their high walls, gates, and bars; in addition, [there were] a very great number of unwalled villages.

“Hear, O Israel! You are crossing the Jordan today to go in to dispossess nations greater and more powerful than you, great cities fortified to heaven,

They will besiege you in all your cities until your high and fortified walls in which you trusted come down throughout your land; and they will besiege you in all your cities throughout your land which the Lord your God has given you.