Deuteronomy 3:5

All these cities were fortified with high walls, gates, and bars; besides unwalled towns very many.

Numbers 13:28

Only, the people are strong that dwell in the land, and the cities are walled, very great; moreover we saw the children of Anak there.

Deuteronomy 1:28

Whither shall we go up? Our brethren have made our hearts melt, saying, They are a people 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

By faith the walls of Jericho fell, having been encircled for seven days.

Treasury of Scripture Knowledge

Summary

All these cities were fenced with high walls, gates, and bars; beside unwalled towns a great many.

Bible References

General references

Deuteronomy 1:28
Whither shall we go up? Our brethren have made our hearts melt, saying, They are a people 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.
Numbers 13:28
Only, the people are strong that dwell in the land, and the cities are walled, very great; moreover we saw the children of Anak there.
Hebrews 11:30
By faith the walls of Jericho fell, having been encircled for seven days.