5 All these cities were fortified with high walls, gates and double-leaved doors, besides a great many of the unwalled towns.
Deuteronomy 3:5 Cross References - LITV
Numbers 13:28
28 But the people that live in the land are fierce, and the cities are fortified, very great. And also we have seen the children of Anak there.
Deuteronomy 1:28
28 Where shall we go up? Our brothers have melted our hearts, saying, We have seen there a people greater and taller than we, cities great and walled up to the heavens, and also the sons of Anak.
Hebrews 11:30
30 By faith the walls of Jericho fell down, having been circled during seven days.