5 All these cities were fortified with high walls, gates, and bars; besides unwalled towns a great many.
Deuteronomy 3:5 Cross References - KJ2000
Numbers 13:28
28 Nevertheless the people are strong that dwell in the land, and the cities are walled, and very great: and moreover we saw the children of Anak there.
Deuteronomy 1:28
28 Where shall we go up? our brethren have discouraged our heart, saying, The people are greater and taller than we; the cities are great and walled up to heaven; and moreover we have seen the sons of the Anakim there.
Hebrews 11:30
30 By faith the walls of Jericho fell down, after they were encircled seven days.