Deuteronomy 3:5

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

Numbers 13:28

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

Deuteronomy 1:28

Where shall we go up? Our brethren have discouraged our heart, saying, This people is greater and taller than we; the cities are great and walled up to heaven; and moreover we have seen the sons of the Anakims there.

Hebrews 11:30

By faith the walls of Jericho fell down after they were compassed about 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
Where shall we go up? Our brethren have discouraged our heart, saying, This people is greater and taller than we; the cities are great and walled up to heaven; and moreover we have seen the sons of the Anakims there.
Numbers 13:28
Nevertheless the people are strong that dwell in that land, and the cities are very great and strong; and moreover we saw the sons of Anak there.
Hebrews 11:30
By faith the walls of Jericho fell down after they were compassed about seven days.